Efficient, direct α-methylenation of carbonyls mediated by diisopropylammonium trifluoroacetate
作者:Alejandro Bugarin、Kyle D. Jones、Brian T. Connell
DOI:10.1039/b924577d
日期:——
A very efficient method for the direct α-methylenation of carbonyl compounds, with yields up to 99%, utilizing paraformaldehyde, diisopropylammonium trifluoroacetate, and catalytic acid or base, is presented.
Studies on antirheumatic agents. 3-Benzoylpropionic acid derivatives.
作者:KAZUYA KAMEO、KUNIO OGAWA、KIMIYO TAKESHITA、SHIRO NAKAIKE、KAZUYUKI TOMISAWA、KAORU SOTA
DOI:10.1248/cpb.36.2050
日期:——
As part of the search for new antirheumatic agents, three types of 3-benzoylpropionic acid derivatives having a mercapto moiety in their structures were prepared, and tested for suppressing activity on adjuvant arthritis in Sprague-Dawley rats. A structure-activity relationship study showed that substitution on the phenyl ring contributed to the activity and the most favorable substituent was different in each type of derivative.