Palladium-catalyzed cyclocarbonylation of cyclic diaryliodoniums: Synthesis of fluorenones
作者:Li Liu、Jian Qiang、Shuhua Bai、Yang Li、Chunbao Miao、Jian Li
DOI:10.1002/aoc.3817
日期:2017.12
An efficient approach to the synthesis of fluorenones via the palladium‐catalyzed cyclocarbonylation of cyclic diaryliodoniums was developed. Our route enables facile access to fluorenones with various substituents in modest to high yields.
Novel procedures for the [Pd]/[Ag]/TFA system catalyzed cascade reactions of nitrile directed remote C-H and dual C-H bond activation with insertion of nitrile were developed, which afforded variously polysubstituted fluorenones in moderate to good yields with tolerance of a wide variety of substrates.