Indium(iii) catalysed substrate selective hydrothiolation of terminal alkynes
作者:Rupam Sarma、Nimmakuri Rajesh、Dipak Prajapati
DOI:10.1039/c2cc30350g
日期:——
In(OTf)3 is reported as the first catalyst having the ability to selectively catalyse both Markovnikov and anti-Markovnikov hydrothiolation of terminal alkynes under identical reaction conditions depending upon the nature of the thiol employed.
A simple and efficient method for palladium and copper co-catalyzed Markovnikov hydrothiolation of thiols to olefins or alkynes has been developed. The reaction allows olefins or alkynes bearing various functional groups to react with different thiols, providing good to excellent yields of alkyl sulfides or vinyl sulfides. A proposed mechanistic study indicated that Cu(II) plays a key role in obtaining