EP1087931A1 - Procede de disubstitution symetrique et asymetrique d'amides d'acide carboxylique avec des organotitanates et des reactifs de grignard - Google Patents
Procede de disubstitution symetrique et asymetrique d'amides d'acide carboxylique avec des organotitanates et des reactifs de grignardInfo
- Publication number
- EP1087931A1 EP1087931A1 EP99931109A EP99931109A EP1087931A1 EP 1087931 A1 EP1087931 A1 EP 1087931A1 EP 99931109 A EP99931109 A EP 99931109A EP 99931109 A EP99931109 A EP 99931109A EP 1087931 A1 EP1087931 A1 EP 1087931A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- general formula
- atoms
- carbon atoms
- iii
- radical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 150000004795 grignard reagents Chemical class 0.000 title abstract description 16
- 150000001732 carboxylic acid derivatives Chemical group 0.000 title abstract 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 29
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 28
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 15
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000012434 nucleophilic reagent Substances 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 10
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 10
- 125000004122 cyclic group Chemical group 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- 125000005842 heteroatom Chemical group 0.000 claims description 7
- 125000003118 aryl group Chemical group 0.000 claims description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 claims description 5
- 125000004429 atom Chemical group 0.000 claims description 4
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 4
- 150000002642 lithium compounds Chemical class 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 3
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 3
- 241000251730 Chondrichthyes Species 0.000 claims description 2
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 claims description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 2
- 125000001255 4-fluorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1F 0.000 claims 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims 1
- 125000003917 carbamoyl group Chemical class [H]N([H])C(*)=O 0.000 claims 1
- 239000003153 chemical reaction reagent Substances 0.000 claims 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 claims 1
- 239000007818 Grignard reagent Substances 0.000 abstract description 11
- 150000003857 carboxamides Chemical group 0.000 description 13
- -1 formamide Chemical class 0.000 description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- 239000011541 reaction mixture Substances 0.000 description 7
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 150000003254 radicals Chemical class 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 125000003342 alkenyl group Chemical group 0.000 description 4
- 125000000304 alkynyl group Chemical group 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- 125000000753 cycloalkyl group Chemical group 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 125000001424 substituent group Chemical group 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 3
- 235000019341 magnesium sulphate Nutrition 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 125000005428 anthryl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C3C(*)=C([H])C([H])=C([H])C3=C([H])C2=C1[H] 0.000 description 2
- 150000005840 aryl radicals Chemical class 0.000 description 2
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 2
- 125000000582 cycloheptyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 2
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 2
- 125000000640 cyclooctyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])C1([H])[H] 0.000 description 2
- 125000000058 cyclopentadienyl group Chemical group C1(=CC=CC1)* 0.000 description 2
- 125000002433 cyclopentenyl group Chemical group C1(=CCCC1)* 0.000 description 2
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 2
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N endo-cyclopentadiene Natural products C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000000555 isopropenyl group Chemical group [H]\C([H])=C(\*)C([H])([H])[H] 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 125000001624 naphthyl group Chemical group 0.000 description 2
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 2
- 125000005561 phenanthryl group Chemical group 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 235000011181 potassium carbonates Nutrition 0.000 description 2
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 description 2
- 125000002568 propynyl group Chemical group [*]C#CC([H])([H])[H] 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- HLBOAQSKBNNHMW-UHFFFAOYSA-N 3-(3-methoxyphenyl)pyridine Chemical compound COC1=CC=CC(C=2C=NC=CC=2)=C1 HLBOAQSKBNNHMW-UHFFFAOYSA-N 0.000 description 1
- GGZZISOUXJHYOY-UHFFFAOYSA-N 8-amino-4-hydroxynaphthalene-2-sulfonic acid Chemical compound C1=C(S(O)(=O)=O)C=C2C(N)=CC=CC2=C1O GGZZISOUXJHYOY-UHFFFAOYSA-N 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical class [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- WMJMABVHDMRMJA-UHFFFAOYSA-M [Cl-].[Mg+]C1CCCCC1 Chemical compound [Cl-].[Mg+]C1CCCCC1 WMJMABVHDMRMJA-UHFFFAOYSA-M 0.000 description 1
- OCZPOJZKHCBXPQ-UHFFFAOYSA-N [Mg]C1CCCC1 Chemical compound [Mg]C1CCCC1 OCZPOJZKHCBXPQ-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- HQWPLXHWEZZGKY-UHFFFAOYSA-N diethylzinc Chemical compound CC[Zn]CC HQWPLXHWEZZGKY-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 150000003840 hydrochlorides Chemical class 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 125000003253 isopropoxy group Chemical group [H]C([H])([H])C([H])(O*)C([H])([H])[H] 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- UKZCGMDMXDLAGZ-UHFFFAOYSA-M magnesium;2-methylpropane;bromide Chemical compound [Mg+2].[Br-].C[C-](C)C UKZCGMDMXDLAGZ-UHFFFAOYSA-M 0.000 description 1
- IWCVDCOJSPWGRW-UHFFFAOYSA-M magnesium;benzene;chloride Chemical compound [Mg+2].[Cl-].C1=CC=[C-]C=C1 IWCVDCOJSPWGRW-UHFFFAOYSA-M 0.000 description 1
- NXPHGHWWQRMDIA-UHFFFAOYSA-M magnesium;carbanide;bromide Chemical compound [CH3-].[Mg+2].[Br-] NXPHGHWWQRMDIA-UHFFFAOYSA-M 0.000 description 1
- VFZXMEQGIIWBFJ-UHFFFAOYSA-M magnesium;cyclopropane;bromide Chemical compound [Mg+2].[Br-].C1C[CH-]1 VFZXMEQGIIWBFJ-UHFFFAOYSA-M 0.000 description 1
- BRKADVNLTRCLOW-UHFFFAOYSA-M magnesium;fluorobenzene;bromide Chemical compound [Mg+2].[Br-].FC1=CC=[C-]C=C1 BRKADVNLTRCLOW-UHFFFAOYSA-M 0.000 description 1
- DQEUYIQDSMINEY-UHFFFAOYSA-M magnesium;prop-1-ene;bromide Chemical compound [Mg+2].[Br-].[CH2-]C=C DQEUYIQDSMINEY-UHFFFAOYSA-M 0.000 description 1
- LVKCSZQWLOVUGB-UHFFFAOYSA-M magnesium;propane;bromide Chemical compound [Mg+2].[Br-].C[CH-]C LVKCSZQWLOVUGB-UHFFFAOYSA-M 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
- C07D295/02—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements
- C07D295/023—Preparation; Separation; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/68—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton
Definitions
- the present invention relates to a method for disubstituting carboxamides with a Grignard reagent in the presence of organotitanium compounds.
- the invention therefore relates to a process for the preparation of compounds of the general formula (I)
- 5 can be and together form a cyclic ring with 3 to 8 carbon atoms, which optionally contains, in addition to nitrogen, at least one further heteroatom selected from the group -S-, -O- and -NR 6 -,
- R 8 and R 9 have the given meanings or R 8 and R 9 are connected to one another and together form a cyclic ring with 3 to 8 C atoms, which optionally in addition to a nitrogen atom
- R 4 and R 5 have at most one hydrogen atom in the ⁇ position.
- R 6 , R 7 , R 8 and R 9 independently of one another A or Ar
- A is a straight-chain or branched alkyl radical with 1 to 10 C-
- Atoms straight-chain or branched alkenyl radical with 2 to 10 C atoms, or straight-chain or branched 25 alkynyl radical with 2-10 C atoms or substituted or unsubstituted cycloalkyl radical with 3-8 C atoms, mono- or polyunsaturated cycloalkyl radical with 3-8 Carbon atoms and
- Ar is a substituted or unsubstituted aryl radical with 6-20 C
- Atoms mean, characterized in that a compound of the general formula (II)
- R has the meaning given for formula (I), and X Cl, Br, I and
- n is an integer from 1 to 3
- Organotitanates in which R is isopropyl are preferably used.
- Methyl, phenyl, cyclopropyl or p-fluorophenyltriisopropyl titanates are very preferably used.
- carboxamides of the general formula (II) can be reacted with good yields in the process described here, in which R 1 , R 2 and R 3 can independently assume the following meanings:
- Methyl- or ethyl-substituted cycloalkyl groups or mono- or polyunsaturated cycloalkyl groups such as cyclopentenyl or cyclopentadienyl or branched or unbranched alkenyl with 2 to 10 C atoms, such as allyl, vinyl, isopropenyl, propenyl or branched or unbranched alkynyl with 2 to 10 C.
- Atoms such as ethynyl, propynyl or
- Aralkenyl or aralkynyl where in each case the aryl, alkenyl and alkynyl group can assume the given meanings, such as in phenylethynyl.
- Form ring with 3-8 C atoms which contains nitrogen, as well as other heteroatoms, such as -S-, -O- or -NR 6 -. are particularly preferred here
- R and R or R and R form a cyclic ring which contains an oxygen atom as a further heteroatom.
- R 4 and R 5 preferably represent an alkyl radical having 1 to 10 carbon atoms, such as methyl, i-propyl, i- or tert-butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl and their suitable isomers, or cycloalkyl with 3-8 C atoms, such as cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl or corresponding methyl- or ethyl-substituted cycloalkyl groups or mono- or polyunsaturated cycloalkyl groups, such as cyclopentenyl or cyclopentadienyl or branched or unbranched alkenyl with 2 to 10 carbon atoms, such as allyl, isopropenyl, propenyl or branched or unbranched al
- aryl radicals with 6 to 20 C atoms optionally unsubstituted or mono- or polysubstituted, such as phenyl, naphthyl, anthryl, phenanthryl, monosubstituted or polysubstituted by substituents selected from the group NO 2 , F, Cl, Br, NH 2 , NHA, NA 2 , OH and OA, where A can have the meanings given above, can be single, multiple or fully halogenated, preferably fluorinated, or
- aralkyl radicals with 7 to 20 carbon atoms such as benzyl
- substituents selected from the group NO 2 , F, Cl, Br, NH 2 , NHA, NA 2 , OH and OA, where A is the can have meanings given above, can be single, multiple or fully halogenated, preferably fluorinated
- Alkynyl group can take the given meanings, e.g. in phenylethynyl.
- the radical Z in the general formula (III) preferably represents a MgX radical with X for Cl or Br or the Z radical for lithium.
- Grignard compounds such as: methyl magnesium bromide, i-propyl magnesium bromide, i- or tert-butyl magnesium bromide, cyclopropyl magnesium bromide, cyclohexyl magnesium chloride, allyl magnesium bromide, cyclopentyl magnesium bromide, cyclopentyl magnesium are particularly preferred Phenylmagnesium chloride, p-fluorophenylmagnesium bromide used for the implementation.
- the organotitanate preferably organotitanium triisopropylate
- Suitable solvents are e.g. aliphatic or aromatic hydrocarbons or ethers.
- Solvents selected from the group consisting of toluene, THF, n-hexane, benzene and diethyl ether are preferably used, which are dried before the reaction by methods known to the person skilled in the art. Drying can be done using magnesium sulfate, calcium chloride, sodium, potassium hydroxide or other methods.
- a preferred embodiment of the process according to the invention is that the organotitanium triisopropylate used in an amount of 0.7 to 1.3, preferably 0.9 to 1.1 equivalents, based on one mole of the amide used as starting material, is initially introduced in the form of a solution , which is set to a temperature of 10 to 30 ° C, preferably to 15-25 ° C, particularly preferably to a temperature of about 20 ° C. Under an inert gas atmosphere (nitrogen or argon), the starting material is slowly added dropwise either as such in liquid form or dissolved in a solvent selected from the group consisting of toluene, THF, n-hexane, benzene and diethyl ether with stirring.
- a solvent selected from the group consisting of toluene, THF, n-hexane, benzene and diethyl ether with stirring.
- the reaction mixture is stirred for a short time, ie for a few minutes, at a constant temperature.
- To the reaction mixture thus obtained is then slowly added as much nucleophilic reagent of the general formula (III), in particular Grignard reagent, that a substitution of the geminal carbonyl-C atom by two identical or different substituents, ie a symmetrical or asymmetrical substitution of the geminal carbonyl-C -Atoms can be done.
- the nucleophilic reagent according to the invention prepared according to methods well known to those skilled in the art, should be added so slowly that the temperature of the reaction mixture does not exceed 50.degree.
- the nucleophilic reagent ie the Grignard reagent or the lithium compound
- the nucleophilic reagent used preferably Grignard reagent
- the nucleophilic reagent used is added in an amount of 0.7 to 1.3 moles per mole of reactant reactant.
- the Grignard reagent is preferably added in an amount of 0.9 to 1.1 mol based on 1 mol of educt and in the same amount as the organotitanate.
- the reaction mixture is stirred at constant temperature for some time until the reaction is complete.
- reaction mixture can be worked up in a manner known to the person skilled in the art.
- the products can be used as salts with the help of hydrochloric acid solutions such.
- hydrochloric acid solutions such.
- a suitable amount of saturated ammonium chloride solution and water can be added and stirring is continued intensively for several hours (1-3 hours).
- the resulting precipitate is separated off and washed with a little ether, preferably diethyl ether.
- the filtrate is made basic (pH> 10) by adding a suitable alkali, such as a NaOH, KOH, sodium or potassium carbonate solution, preferably sodium hydroxide solution.
- a suitable alkali such as a NaOH, KOH, sodium or potassium carbonate solution, preferably sodium hydroxide solution.
- the phases that form are then separated and the aqueous phase is extracted several times (e.g. three times with 30 ml each in the above special case) with diethyl ether.
- the combined organic phases are washed with (e.g. 15 ml) saturated sodium chloride solution and can be dried over potassium carbonate, magnesium sulfate or sodium sulfate and filtered.
- the products can be purified in various ways by methods known to those skilled in the art, e.g. in the following way:
- the organic phase is extracted several times with a 0.5 M acid solution, preferably an aqueous hydrochloric acid solution.
- the extract obtained is adjusted to pH> 10 using lyes, preferably 2 M sodium hydroxide solution, and extracted at least once, preferably several times, with diethyl ether.
- the organic phases obtained which contain the reaction product can optionally be dried over potassium carbonate, magnesium sulfate or sodium sulfate and freed from the organic solvent under vacuum.
- the Grignard reagents can also be replaced by the corresponding lithium compounds.
- the corresponding lithium compounds can be prepared by the methods generally known to the person skilled in the art and can be reacted according to the invention in the same manner as described above. 5
- the compounds of general formula (I) prepared according to the invention can, for. B. as intermediates for the production of sulfur- or selenium-containing amines for the chiral catalysis of diethylzinc syntheses (literature: Werth, Thomas; Tetrahedron Lett. 36; 1995, 7849-7852, Werth, Thomas et all. Helv. Chim. Acta 79, 1996, 1957-1966) can be used. 0
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
L'invention concerne un nouveau procédé de disubstitution d'amides d'acide carboxylique sur un atome de C-carbonyle géminé, à l'aide d'un réactif de Grignard en présence d'un organotitanate.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19827167 | 1998-06-18 | ||
| DE19827167 | 1998-06-18 | ||
| DE19844194A DE19844194A1 (de) | 1998-06-18 | 1998-09-26 | Verfahren zur symmetrischen oder unsymmetrischen Disubstitution von Carbonsäureamiden mit Organotitanaten und Grignardreagenzien |
| DE19844194 | 1998-09-29 | ||
| PCT/EP1999/004253 WO1999065861A1 (fr) | 1998-06-18 | 1999-06-18 | Procede de disubstitution symetrique et asymetrique d'amides d'acide carboxylique avec des organotitanates et des reactifs de grignard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1087931A1 true EP1087931A1 (fr) | 2001-04-04 |
Family
ID=26046885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99931109A Ceased EP1087931A1 (fr) | 1998-06-18 | 1999-06-18 | Procede de disubstitution symetrique et asymetrique d'amides d'acide carboxylique avec des organotitanates et des reactifs de grignard |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6479661B1 (fr) |
| EP (1) | EP1087931A1 (fr) |
| JP (1) | JP2002518364A (fr) |
| WO (1) | WO1999065861A1 (fr) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19960377A1 (de) * | 1999-12-14 | 2001-06-21 | Merck Patent Gmbh | Verfahren zur Herstellung kombinatorischer Aminbibliotheken |
| CA2587406A1 (fr) * | 2004-11-16 | 2006-05-26 | Limerick Neurosciences, Inc. | Procedes et compositions de traitement de douleurs |
| US20070087977A1 (en) * | 2004-11-16 | 2007-04-19 | Wendye Robbins | Methods and compositions for treating pain |
| US9056850B2 (en) | 2008-10-17 | 2015-06-16 | Janssen Pharmaceutica N.V. | Process for the preparation of compounds useful as inhibitors of SGLT |
| US20110009347A1 (en) | 2009-07-08 | 2011-01-13 | Yin Liang | Combination therapy for the treatment of diabetes |
| IN2012DN03299A (fr) | 2009-10-14 | 2015-10-23 | Janssen Pharmaceutica Nv | |
| SG185525A1 (en) | 2010-05-11 | 2012-12-28 | Janssen Pharmaceutica Nv | Pharmaceutical formulations comprising 1 - (beta-d-glucopyranosyl) - 2 -thienylmethylbenzene derivatives as inhibitors of sglt |
| AU2012241897C1 (en) | 2011-04-13 | 2017-05-11 | Janssen Pharmaceutica Nv | Process for the preparation of compounds useful as inhibitors of SGLT2 |
-
1999
- 1999-06-18 US US09/719,971 patent/US6479661B1/en not_active Expired - Fee Related
- 1999-06-18 WO PCT/EP1999/004253 patent/WO1999065861A1/fr not_active Ceased
- 1999-06-18 JP JP2000554688A patent/JP2002518364A/ja active Pending
- 1999-06-18 EP EP99931109A patent/EP1087931A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9965861A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999065861A1 (fr) | 1999-12-23 |
| JP2002518364A (ja) | 2002-06-25 |
| US6479661B1 (en) | 2002-11-12 |
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