[EN] PROCESS FOR THE MANUFACTURE OF 2,6,10-TRIMETHYLUNDECA-5,9-DIENAL<br/>[FR] PROCÉDÉ DE PRODUCTION DE 2,6,10-TRIMÉTHYLUNDECA-5,9-DIÉNAL
申请人:DSM IP ASSETS BV
公开号:WO2018069457A1
公开(公告)日:2018-04-19
The present invention relates to an improved process for the manufacture of 2,6,10-trimethylundeca-5,9-dienal (Darzens reaction, saponification, decarboxylation).
本发明涉及一种改进的制备2,6,10-三甲基十一烯-5,9-醛(达尔森反应,皂化,脱羧)的工艺。
Process for preparing polyene compounds
申请人:Teikoku Chemical Industry Co., Ltd.
公开号:US03939202A1
公开(公告)日:1976-02-17
Polyene compounds of the formula: ##EQU1## wherein R' is protected or unprotected hydroxyl or a group of the formula: ##EQU2## (in which R" and R"' are each carboxyl or a group convertible into carboxyl on hydrolysis), m is a positive integer and n is 0 or a positive integer, which are useful as intermediates in the synthesis of coenzyme Q, can be produced advantageously through a step for the dehydration of a compound of the formula: ##EQU3## wherein R', m and n are each as defined above.