Highly Regioselective Hydrosilylation of Unsymmetric Alkynes Using a Phenylthio Directing Group
作者:Kuan-Hsun Huang、Minoru Isobe
DOI:10.1002/ejoc.201402577
日期:2014.8
Cobalt-assisted hydrosilylation of acetylenes is particularly interesting in organic synthesis since alkynyl group functionalization can give way to more useful substructures. This study aims to answer the general question of how to control hydrosilylationregioselectivity with unsymmetric alkynyl groups. Cobalt-catalyzed hydrosilylation is highlyregioselective with alkyl-phenylthio-acetylenes affording
Cu(i)-catalyzed aerobic cross-dehydrogenative coupling of terminal alkynes with thiols for the construction of alkynyl sulfides
作者:Yong Yang、Weibing Dong、Yisong Guo、Robert M. Rioux
DOI:10.1039/c3gc41330f
日期:——
and selective aerobiccross-dehydrogenativecoupling of terminalalkynes with thiols to construct alkynyl sulfides catalyzed by Cu(I) using molecular oxygen as the oxidant has been demonstrated under mild reaction conditions. The process is applicable to a wide range of alkynes and various thiols and is compatible with a variety of functional groups on both alkyne and thiol coupling partners.