Oxidative Addition of Pd(0) to Ar−SO<sub>2</sub>R Bonds: Heck-Type Reactions of Sulfones
作者:José Luis García Ruano、José Alemán、Cristina García Paredes
DOI:10.1021/ol060608y
日期:2006.6.1
[reaction: see text] Phenyl vinyl sulfones and sulfoxides react with Pd(OAc)(2) to form styrylsulfoxides and sulfones according to the first Mizoroki-Heck reaction reported for these thio derivatives. Only sulfones are able to react by using catalytic amounts of Pd (up to 1 mol %) in the presence of Ag(2)CO(3). 1,2-Diphenylsulfonyl ethenes, alkynylphenyl sulfones, and other sulfones, less prone to act as acceptors