ES225697A1 - A procedure for the preparation of 15,15-dehidro-beta-carotene (Machine-translation by Google Translate, not legally binding) - Google Patents

A procedure for the preparation of 15,15-dehidro-beta-carotene (Machine-translation by Google Translate, not legally binding)

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Publication number
ES225697A1
ES225697A1 ES0225697A ES225697A ES225697A1 ES 225697 A1 ES225697 A1 ES 225697A1 ES 0225697 A ES0225697 A ES 0225697A ES 225697 A ES225697 A ES 225697A ES 225697 A1 ES225697 A1 ES 225697A1
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ES
Spain
Prior art keywords
carotene
beta
translation
preparation
machine
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
ES0225697A
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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Priority to ES0225697A priority Critical patent/ES225697A1/en
Publication of ES225697A1 publication Critical patent/ES225697A1/en
Expired legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Process for the preparation of 15,15 "-dehydro-beta-carotene, in which 8- [2", 6 ", 6" -trimethyl-cyclohexen- (1 ") - il] is condensed] -, 26-dimethyl-octatrien- (2,4,6) -al- (1) or 8- [2 ", 6", 6 "-trimethyl-cyclohexylidene] -2,6-dimethyl-octatrien - (2,4,6) -al- (1) to obtain 1,18-di- [2 ", 6", 6 "-trimethyl-cyclohexen- (1") - il] -3, 7,12,16-tetramethyl-8,11-dihydroxy-octadecahexaen- (2,4,6,12,14,16) -ina- (9) or 1,18-di- [2 ", 6 '', 6 "-trimethyl-cyclohexylidene] -3,7,12,16-tetramethyl-8,11-dihydroxy-octadecahexaen- (2,4,6,12,14,16) -ina- (9), respectively, and the condensation product, optionally after esterification of its hydroxy groups, is subjected to a treatment that causes the elimination of 2 molecules of water or acid, respectively, with allylic transposition, characterized in that the elimination of water or acid it is effected by treatment of the condensation product with a hydrohalic acid. (Machine-translation by Google Translate, not legally binding)
ES0225697A 1955-12-16 1955-12-16 A procedure for the preparation of 15,15-dehidro-beta-carotene (Machine-translation by Google Translate, not legally binding) Expired ES225697A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES0225697A ES225697A1 (en) 1955-12-16 1955-12-16 A procedure for the preparation of 15,15-dehidro-beta-carotene (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES0225697A ES225697A1 (en) 1955-12-16 1955-12-16 A procedure for the preparation of 15,15-dehidro-beta-carotene (Machine-translation by Google Translate, not legally binding)

Publications (1)

Publication Number Publication Date
ES225697A1 true ES225697A1 (en) 1956-03-01

Family

ID=37839010

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0225697A Expired ES225697A1 (en) 1955-12-16 1955-12-16 A procedure for the preparation of 15,15-dehidro-beta-carotene (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES225697A1 (en)

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