Cosmetic Compositions Containing Esters Based on 2-Propylheptanol
申请人:Cognis IP Management GmbH
公开号:US20140121394A1
公开(公告)日:2014-05-01
Esters of 2-propylheptanol with linear or branched, saturated or unsaturated C
5
-C
36
carboxylic acids and C
4
-C
36
dicarboxylic acids, compositions comprising these esters, and to the use of esters of 2-propylheptanol with linear or branched, saturated or unsaturated C
5
-C
35
-carboxylic acids and/or C
4
-C
36
-dicarboxylic acids in cosmetic and/or topical pharmaceutical preparations.
Pd-Catalyzed Regioselective Hydrocarboxylation of Alkyl Terminal Olefins with Oxalic Acid
作者:Wenlong Ren、Xujian Sheng、Yian Shi
DOI:10.1021/acs.orglett.4c02009
日期:2024.7.26
A Pd-catalyzedregioselective hydrocarboxylation of alkyl terminal olefins with oxalic acid is described. A wide variety of linear carboxylic acids can be readily obtained in good yields and high l/b (linear/branched) ratios with Pd2(dba)3 and (p-ClPh)3P under mild conditions. The reaction process is operationally simple and requires no handling of toxic CO. In addition, branched carboxylic acids can