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Machine translation
1. (WO1979000509) PROCESS FOR PREPARATION OF A TERPENTHENE ETHER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/000509    International Application No.:    PCT/CH1978/000053
Publication Date: 09.08.1979 International Filing Date: 14.12.1978
IPC:
C07D 309/04 (2006.01)
Applicants:
Inventors:
Priority Data:
402/78 16.01.1978 CH
Title (EN) PROCESS FOR PREPARATION OF A TERPENTHENE ETHER
(FR) PROCEDE POUR LA PREPARATION D"UN ETHER TERPENIQUE
Abstract: front page image
(EN)The invention relates to the field of perfumes. Mixtures of cis- and trans-2 (2-methyl-prop-1-ene-1-yl)-4-methyl-tetrahydopyran containing preponderant amounts of the isomer cis are obtained by a process consisting of hydrogenation of a methylene cyclic ether of the formula (FORMULA) in the presence of a catalyzer made of Raney nickel or palladium to produce a mixture of cis and trans-2-(2-methyl-prop-1-ene-1-yl)-4-methyl-tetrahydropyran, the said mixture being then enriched in isomer cis by treatment with an acid agent.
(FR)L"invention a trait au domaine de la parfumerie. Des melanges de cis- et trans-2-(2-methyl-prop-1-ene-1-yl)-4-methyl-tetrahydropyranne contenant des quantites preponderantes de l"isomere cis sont obtenus par un procede qui consiste en l"hydrogenation d"un ether cyclique methylenique de formule (FORMULE) en presence d"un catalyseur constitue par du nickel de Raney ou du palladium pour fournir un melange de cis- et trans-2-(2-methyl-prop-1-ene-1-yl)-4-methyl-tetrahydropyranne, ledit melange etant ensuite enrichi en l"isomere cis par traitement a l"aide d"un agent acide.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)