Multiple pathways in rhodium-catalyzed reactions of 1-alkynes with 3-butenoic acid
作者:Giuseppe Salerno、Maria Panza、Gian Paolo Chiusoli、Mirco Costa
DOI:10.1016/0022-328x(90)87255-c
日期:1990.8
Direct Formic Acid Mediated
<i>Z</i>
‐Selective Reductive Coupling of Dienes and Aldehydes
作者:Christopher Cooze、Raphael Dada、Rylan J. Lundgren
DOI:10.1002/anie.201905540
日期:2019.8.26
carbonyls to generate Z-olefin products remain rare and often require either alkyl borane or zinc reductants, limiting their utility. Demonstrated here is that formic acidmediates the Rh-catalyzed, Z-selective coupling of dienes and aldehydes. The process is distinguished by broad tolerance towards reducible or electrophilic groups. Kinetic analysis suggests that generation of the catalytically active
Process for the preparation of alkenylbenzenecarboxylic acid derivatives
申请人:Ciba-Geigy Corporation
公开号:US04335054A1
公开(公告)日:1982-06-15
Compounds of the formula I ##STR1## in which p, m, Z, R, R' and Y are as defined in claim 1, can be obtained in a simple and economical manner by a novel process which comprises reacting a halide of the formula ##STR2## with the corresponding acrylic acid derivative, in the presence of a base and of certain palladium catalysts, such as palladium acetate. The compounds (I), and functional derivatives prepared therefrom, are useful for the preparation of photocrosslinkable polymers, which can in particular be employed as (so-called) photoresists.