The catalytic decarbonylation reaction of aliphaticcarboxylicacids can be carried out in the presence of an iron complex, and it proceeds smoothly to give alpha-olefins with high selectivity.
PALLADIUM-CATALYZED DECARBONYLATION OF FATTY ACID ANHYDRIDES FOR THE PRODUCTION OF LINEAR ALPHA OLEFINS
申请人:CALIFORNIA INSTITUTE OF TECHNOLOGY
公开号:US20140155666A1
公开(公告)日:2014-06-05
The present invention is directed to methods of forming olefins, especially linear alpha olefins from fatty acids or anhydrides, each method comprising: contacting an amount of precursor carboxylic acid anhydride with a palladium catalyst comprising a bidentate bis-phosphine ligand in a reaction mixture so as to form an olefin in a product with the concomittant formation and removal of CO and water from the reaction mixture, either directly or indirectly, wherein the reaction mixture is maintained with a sub-stoichiometric excess of a sacrificial carboxylic acid anhydride, an organic acid, or both, said sub-stoichiometric excess being relative to the amount of the precursor carboxylic acid anhydride. The precursor carboxylic acid anhydride may be added to the reaction mixture directly or formed in situ by the reaction between at least one precursor carboxylic acid with a stoichiometric amount of the sacrificial acid anhydride.
Branched-chain fatty acids. XXVI. Synthesis of optically active acids of use in the study of the structure of C<sub>27-</sub> phthienoic acid. Partial thermal racemization of (-)-5-methyl-2-tridecenoic acid
作者:James. Cason、Norman L. Allinger、C. Freeman. Allen
DOI:10.1021/jo50013a013
日期:1953.7
METABOLIC BIOMARKERS FOR OVARIAN CANCER AND METHODS OF USE THEREOF