WO2012173842A3 - Purification process for para-methallylpyrocatechol - Google Patents
Purification process for para-methallylpyrocatechol Download PDFInfo
- Publication number
- WO2012173842A3 WO2012173842A3 PCT/US2012/041032 US2012041032W WO2012173842A3 WO 2012173842 A3 WO2012173842 A3 WO 2012173842A3 US 2012041032 W US2012041032 W US 2012041032W WO 2012173842 A3 WO2012173842 A3 WO 2012173842A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- methallylpyrocatechol
- para
- purification process
- purification
- flavor
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/685—Processes comprising at least two steps in series
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
- C07C37/74—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by distillation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
- C07C37/84—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by crystallisation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D307/54—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
- C07D317/44—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D317/46—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems condensed with one six-membered ring
- C07D317/48—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring
- C07D317/50—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to atoms of the carbocyclic ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
- C07D317/44—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D317/46—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems condensed with one six-membered ring
- C07D317/48—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring
- C07D317/50—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to atoms of the carbocyclic ring
- C07D317/54—Radicals substituted by oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D407/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00
- C07D407/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00 containing two hetero rings
- C07D407/06—Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00 containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Fats And Perfumes (AREA)
Abstract
The present invention relates to a process for the purification of para-methallylpyrocatechol and to the preparation of flavor and fragrance compounds from para-methallylpyrocatechol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201280010957.3A CN103562169B (en) | 2011-06-13 | 2012-06-06 | The purification process of p-methylallyl pyrocatechol |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161496292P | 2011-06-13 | 2011-06-13 | |
| US61/496,292 | 2011-06-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2012173842A2 WO2012173842A2 (en) | 2012-12-20 |
| WO2012173842A3 true WO2012173842A3 (en) | 2013-02-28 |
Family
ID=47357670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2012/041032 Ceased WO2012173842A2 (en) | 2011-06-13 | 2012-06-06 | Purification process for para-methallylpyrocatechol |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103562169B (en) |
| WO (1) | WO2012173842A2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673967B (en) * | 2016-11-14 | 2020-05-22 | 湖南海利株洲精细化工有限公司 | Preparation method of 4- (2-methallyl) -1, 2-benzenediol |
| CN111909134B (en) * | 2019-05-07 | 2024-04-26 | 北京鼎材科技有限公司 | A compound and its application, and an organic electroluminescent device containing the same |
| CN116554191A (en) * | 2023-05-06 | 2023-08-08 | 河南中烟工业有限责任公司 | Synthesis method of bergamotene lactone |
| CN117486695A (en) * | 2023-11-27 | 2024-02-02 | 山东泓瑞医药科技股份公司 | A synthesis method of veratrol based on Claisen rearrangement and etherification reaction |
| CN118146071B (en) * | 2024-03-07 | 2024-09-27 | 江苏三吉利化工股份有限公司 | A synthesis process of 4-(2-methylallyl)-1,2-benzenediol |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3008968A (en) * | 1958-02-11 | 1961-11-14 | Int Flavors & Fragrances Inc | Process for making 2-methyl-3-(3'-4'-methylenedioxyphenyl)-propanal |
| SU1153828A3 (en) * | 1979-12-07 | 1985-04-30 | Рон-Пуленк Агрошими (Фирма) | Method of obtaining 2,3-dihydro-2,2-dimethyl-7-oxybenzofuran |
| EP0281098A1 (en) * | 1987-03-04 | 1988-09-07 | Eisai Co., Ltd. | Benzodioxole derivatives, compositions comprising the same, and the use of the same for the manufacture of medicaments |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4380654A (en) * | 1982-02-18 | 1983-04-19 | Fmc Corporation | Process for preparation of 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran |
| CN1024098C (en) * | 1988-06-15 | 1994-03-30 | 北京燕山石油化工公司京蒸化工技术开发公司 | Method for recovering p-tert-butyl catechol |
-
2012
- 2012-06-06 CN CN201280010957.3A patent/CN103562169B/en not_active Expired - Fee Related
- 2012-06-06 WO PCT/US2012/041032 patent/WO2012173842A2/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3008968A (en) * | 1958-02-11 | 1961-11-14 | Int Flavors & Fragrances Inc | Process for making 2-methyl-3-(3'-4'-methylenedioxyphenyl)-propanal |
| SU1153828A3 (en) * | 1979-12-07 | 1985-04-30 | Рон-Пуленк Агрошими (Фирма) | Method of obtaining 2,3-dihydro-2,2-dimethyl-7-oxybenzofuran |
| EP0281098A1 (en) * | 1987-03-04 | 1988-09-07 | Eisai Co., Ltd. | Benzodioxole derivatives, compositions comprising the same, and the use of the same for the manufacture of medicaments |
Non-Patent Citations (1)
| Title |
|---|
| DATABASE REGISTRY accession no. N 1082601-07-7 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103562169A (en) | 2014-02-05 |
| CN103562169B (en) | 2016-04-20 |
| WO2012173842A2 (en) | 2012-12-20 |
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