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ES408008A2 - Procedure for the preparation of 2- (furilmetil) -6,7-benzomorphanes. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for the preparation of 2- (furilmetil) -6,7-benzomorphanes. (Machine-translation by Google Translate, not legally binding)

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Publication number
ES408008A2
ES408008A2 ES408008A ES408008A ES408008A2 ES 408008 A2 ES408008 A2 ES 408008A2 ES 408008 A ES408008 A ES 408008A ES 408008 A ES408008 A ES 408008A ES 408008 A2 ES408008 A2 ES 408008A2
Authority
ES
Spain
Prior art keywords
formula
hydrogen atom
signifies
methyl
group
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
ES408008A
Other languages
Spanish (es)
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.)
CH Boehringer Sohn AG and Co KG
Original Assignee
CH Boehringer Sohn AG and Co KG
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 CH Boehringer Sohn AG and Co KG filed Critical CH Boehringer Sohn AG and Co KG
Priority to ES408008A priority Critical patent/ES408008A2/en
Publication of ES408008A2 publication Critical patent/ES408008A2/en
Expired legal-status Critical Current

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Abstract

Improvements made to the subject of main patent No. 399,536, applied for on February 7, 1972, by: "Procedure for the preparation of 2- (furylmethyl) -6,7-benzomorphanes" of the general formula **(See formula)** where R signifies a hydrogen atom or a methyl or acetyl group, R1 signifies a hydrogen atom, a methyl, ethyl, n-propyl, isopropyl or butyl group; R2 signifies a hydrogen atom, a methyl or ethyl group; and R3 signifies a hydrogen atom or a methyl or ethyl group; and its acid addition salts, characterized in that a quaternary ammonium salt of the formula is reacted **(See formula)** wherein R1, R2, R4 and Z are as defined above and R5 represents an easy group to remove by Hofmann removal, preferably a phenethyl, naphthylethyl or 1,2-diphenylethyl group and X means a halide anion or sulfonate, by treatment with alkalis, to form a compound of formula IV **(See formula)** and -if compounds of formula IV are obtained, in which Z does not have the meaning of R3- the substituent Z is transformed by chemical reaction into a hydrogen atom or a methyl or ethyl group; and if desired - for the preparation of a compound of the formula I, in which R signifies a hydrogen atom - a compound of the formula is dealkoxylated or deacylated **(See formula)** wherein R1, R2 and R3 have the meanings mentioned above and R4 signifies an alcohol, aralcohyl or acyl group; and if desired for the preparation of a compound of formula I, in which R means a methyl or acetyl group, a compound of formula IVa is methylated or acetylated, in which R1 and R2 have the aforementioned meanings and R4 designates a hydrogen atom; and eventually the compounds of the general formula I are transformed into their physiologically harmless acid addition salts. (Machine-translation by Google Translate, not legally binding)
ES408008A 1972-10-26 1972-10-26 Procedure for the preparation of 2- (furilmetil) -6,7-benzomorphanes. (Machine-translation by Google Translate, not legally binding) Expired ES408008A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES408008A ES408008A2 (en) 1972-10-26 1972-10-26 Procedure for the preparation of 2- (furilmetil) -6,7-benzomorphanes. (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES408008A ES408008A2 (en) 1972-10-26 1972-10-26 Procedure for the preparation of 2- (furilmetil) -6,7-benzomorphanes. (Machine-translation by Google Translate, not legally binding)

Publications (1)

Publication Number Publication Date
ES408008A2 true ES408008A2 (en) 1975-11-16

Family

ID=8462494

Family Applications (1)

Application Number Title Priority Date Filing Date
ES408008A Expired ES408008A2 (en) 1972-10-26 1972-10-26 Procedure for the preparation of 2- (furilmetil) -6,7-benzomorphanes. (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES408008A2 (en)

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19890227