Rhodium-Catalyzed Intermolecular Stereoselective Allylation of Indoles with Allenes
作者:Chaoyan Ma、Can Li、Jiahui Bai、Junzhe Xiao、Yizhan Zhai、Yinlong Guo、Shengming Ma
DOI:10.1021/acscatal.2c01433
日期:2022.8.19
rhodium-catalyzed C–H functionalization-based intermolecular allylation of indoles with trisubstituted allenes has been developed. This synthetic process proceeds with an excellent regioselectivity, Z-selectivity, high efficiency of chirality transfer, and a wide tolerance of reactive functional groups under mild conditions. Late-stage modification on a series of complex bioactive or drug molecules and
Formal Alkylation of Allenes through Highly Selective Radical Cyclizations of Allene-enes
作者:Rong Zeng、Chunling Fu、Shengming Ma
DOI:10.1002/anie.201107747
日期:2012.4.16
example of alkene‐to‐allene radical cyclization of allene‐enes is reported. The highly chemoselective intermolecular radical addition reaction of the alkene and subsequent, exclusive exo‐radical addition to the allene was realized with perfluoroalkyl radicals (see scheme). A subsequent TBAF‐promoted dehydroiodination of the cyclization products forms cyclopentanes and regenerates an allene moiety (TBAF=t