Stereoselective Addition of Alcohol to Acetylenecarboxylate Catalyzed by Silver(I) Salt
作者:Yasutaka Kataoka、Osamu Matsumoto、Kazuhide Tani
DOI:10.1246/cl.1996.727
日期:1996.9
A silver(I) salt catalyzed the stereoselective trans addition of alcohol to dimethylacetylenedicarboxylate smoothly under mild conditions to afford dimethyl methoxyfumarate in a quantitative yield.
Regio- and Stereoselective Intermolecular Hydroalkoxylation of Alkynes Catalysed by Cationic Gold(I) Complexes
作者:Avelino Corma、Violeta R. Ruiz、Antonio Leyva-Pérez、María J. Sabater
DOI:10.1002/adsc.201000094
日期:——
levels of stereoselectivity by using cationic gold(I)‐phosphine complexes as catalysts. By choosing the appropriate phosphine, the selective formation of the Z or the E isomer of the vinyl ether can be tuned, and the undesired formation of the ketal can be controlled. The isomerisation of fumarates (Z‐isomer) to maleates (E‐isomer) is a gold‐catalysed process that can be conducted in one‐pot. When