Invention Grant
- Patent Title: Polythiols as cis/trans isomerization catalysts for unsaturated compounds
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Application No.: US14651510Application Date: 2013-12-18
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Publication No.: US09765002B2Publication Date: 2017-09-19
- Inventor: René Tobias Stemmler , Nadine Greiner
- Applicant: DSM IP ASSETS B.V.
- Applicant Address: NL Heerlen
- Assignee: DSM IP ASSETS B.V.
- Current Assignee: DSM IP ASSETS B.V.
- Current Assignee Address: NL Heerlen
- Agency: Nixon & Vanderhye P.C.
- Priority: EP12197798 20121218
- International Application: PCT/IB2013/061082 WO 20131218
- International Announcement: WO2014/097171 WO 20140626
- Main IPC: C07C43/313
- IPC: C07C43/313 ; C07C321/30 ; C07C45/67 ; C07D319/06

Abstract:
The present invention relates to a process of a cis/trans isomerization of an unsaturated compound A being selected from the group consisting of unsaturated ketones, unsaturated ketals, unsaturated aldehydes, unsaturated acetals, unsaturated carboxylic acids, esters of an unsaturated carboxylic acid and amides of an unsaturated carboxylic acid using polythiol as cis/trans isomerization catalyst. It has been observed that the isomerization is very efficient and fast.
Public/Granted literature
- US20150315113A1 POLYTHIOLS AS CIS/TRANS ISOMERIZATION CATALYSTS FOR UNSATURATED COMPOUNDS Public/Granted day:2015-11-05
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