Concomitant catalytic transformations of geminal ethynyl and hydroxy groups of steroids into acetyl and ester functions with retention of configuration by [Ru(µ-O<sub>2</sub>CH)(CO)<sub>2</sub>(PPh<sub>3</sub>)]<sub>2</sub>
作者:Christophe Darcel、Christian Bruneau、Pierre H. Dixneuf、Günter Neef
DOI:10.1039/c39940000333
日期:——
Steroids 1, 2, 3 containing both hydroxy and ethynyl groups at C(17) are selectively transformed by reaction with carboxylic acids, catalysed by [Ru(µ-O2CH)(CO)2(PPh3)]2 complex, into β-oxopropyl esters 4, 5, 6 with retention of configuration.