TBDPS and Br-TBDPS Protecting Groups as Efficient Aryl Group Donors in Pd-Catalyzed Arylation of Phenols and Anilines
作者:Chunhui Huang、Vladimir Gevorgyan
DOI:10.1021/ja904791y
日期:2009.8.12
as an efficient phenyl group donor for o-bromophenols via Pd-catalyzed C-Harylation followed by a routine TBAF deprotection of the resulting silacycles. Employment of the newly designed Br-TBDPS protecting group in the same sequence allows for a facile introduction of a phenyl group at the ortho position of phenols and anilines. Alternatively, switching desilylation to oxidation in the last step allows