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GB883220A - Improvements in or relating to morpholine derivatives - Google Patents

Improvements in or relating to morpholine derivatives

Info

Publication number
GB883220A
GB883220A GB2210859A GB2210859A GB883220A GB 883220 A GB883220 A GB 883220A GB 2210859 A GB2210859 A GB 2210859A GB 2210859 A GB2210859 A GB 2210859A GB 883220 A GB883220 A GB 883220A
Authority
GB
United Kingdom
Prior art keywords
general formula
acid addition
morpholine
dextrorotatory
diethanolamine
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.)
Expired
Application number
GB2210859A
Inventor
Hans C Stark
Harm Siemer
Adolf Doppstatt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ravensberg GmbH Chemische Fabrik
Original Assignee
Ravensberg GmbH Chemische Fabrik
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ravensberg GmbH Chemische Fabrik filed Critical Ravensberg GmbH Chemische Fabrik
Priority to GB2210859A priority Critical patent/GB883220A/en
Publication of GB883220A publication Critical patent/GB883220A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D265/00Heterocyclic compounds containing six-membered rings having one nitrogen atom and one oxygen atom as the only ring hetero atoms
    • C07D265/281,4-Oxazines; Hydrogenated 1,4-oxazines
    • C07D265/301,4-Oxazines; Hydrogenated 1,4-oxazines not condensed with other rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

The invention comprises dextrorotatory morpholine derivatives of the general formula <FORM:0883220/IV (b)/1> and their acid addition salts containing pharmaceutically acceptable anions wherein R is a cyclohexyl or a phenyl group, R1 is a C1-5 alkyl R2 is a hydrogen atom or a C1-5 alkyl group, and the substituents R1 and R2 are in threo configuration with respect to one another, and a process for the preparation of both racemic and optically active morpholines of above general formula by heating an acid addition salt of a racemic or optically active diethanolamine of the general formula <FORM:0883220/IV (b)/2> with zinc chloride and separating from the reaction mass the morpholine derivative formed or an acid addition salt thereof. A small quantity of phosphorus pentoxide may be used as an auxiliary dehydrating agent. A laevorotatory diethanolamine is cyclised to form a dextrorotatory morpholine. The diethanolamines above, used as starting materials, are prepared by adding R.CH(OH).C:H to boron trifluoride containing red mercuric oxide to form the corresponding 1,4-dioxane of the formula <FORM:0883220/IV (b)/3> opening the ring, without isolation of the compound, by boiling with hydrochloric acid, hydrogenating the ketol and aminating it with a salt of an aminoalcohol H2NCH2CH2COH) and where R2 is an alkyl group, alkylating the product so obtained. Specification 773,780, U.S.A. Specifications Re-issue 615,488 and 2,835,669, and German Specifications 95,854 and 844,006 are referred to.
GB2210859A 1959-06-26 1959-06-26 Improvements in or relating to morpholine derivatives Expired GB883220A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2210859A GB883220A (en) 1959-06-26 1959-06-26 Improvements in or relating to morpholine derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2210859A GB883220A (en) 1959-06-26 1959-06-26 Improvements in or relating to morpholine derivatives

Publications (1)

Publication Number Publication Date
GB883220A true GB883220A (en) 1961-11-29

Family

ID=10174026

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2210859A Expired GB883220A (en) 1959-06-26 1959-06-26 Improvements in or relating to morpholine derivatives

Country Status (1)

Country Link
GB (1) GB883220A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2325647A1 (en) * 1975-09-27 1977-04-22 Basf Ag PROCESS FOR PREPARING N-SUBSTITUTED TETRAHYDRO-1,4-OXAZINES
EP0094565A3 (en) * 1982-05-13 1984-01-11 Basf Aktiengesellschaft Process for the preparation of cis-2,6-dimethyl morpholine
WO2011146850A1 (en) * 2010-05-21 2011-11-24 Research Triangle Institute Phenylmorpholines and analogues thereof
US8906908B2 (en) 2010-05-21 2014-12-09 Research Triangle Institute Hydroxybupropion analogues for treating drug dependence

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2325647A1 (en) * 1975-09-27 1977-04-22 Basf Ag PROCESS FOR PREPARING N-SUBSTITUTED TETRAHYDRO-1,4-OXAZINES
EP0094565A3 (en) * 1982-05-13 1984-01-11 Basf Aktiengesellschaft Process for the preparation of cis-2,6-dimethyl morpholine
WO2011146850A1 (en) * 2010-05-21 2011-11-24 Research Triangle Institute Phenylmorpholines and analogues thereof
US8906908B2 (en) 2010-05-21 2014-12-09 Research Triangle Institute Hydroxybupropion analogues for treating drug dependence
US9527823B2 (en) 2010-05-21 2016-12-27 Research Triangle Institute Hydroxybupropion analogues for treating drug dependence
US9617229B2 (en) 2010-05-21 2017-04-11 Research Triangle Institute Phenylmorpholines and analogues thereof

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