Photoinduced 1,2-dicarbofunctionalization of alkenes with organotrifluoroborate nucleophiles <i>via</i> radical/polar crossover
作者:María Jesús Cabrera-Afonso、Anasheh Sookezian、Shorouk O. Badir、Mirna El Khatib、Gary A. Molander
DOI:10.1039/d1sc02547c
日期:——
postulated to proceed throughphotochemicalradical/polar crossover to afford a key carbocation species that undergoes subsequent trapping with organoboron nucleophiles to accomplish the carboallylation, carboalkenylation, carboalkynylation, and carboarylation of alkenes with regio- and chemoselective control. The mechanistic intricacies of this difunctionalization were elucidated through Stern–Volmer quenching
Oxidative Cross-Coupling of Boron and Antimony Nucleophiles via Palladium(I)
作者:Quillon Simpson、Matthew J. G. Sinclair、David W. Lupton、Adrian B. Chaplin、Joel F. Hooper
DOI:10.1021/acs.orglett.8b01989
日期:2018.9.21
The use of an isolatable, monomeric Pd(I) complex as a catalyst for the oxidative cross-coupling of aryl-antimony and aryl-boron nucleophiles is reported. This reaction tolerates a wide variety of substrates, with >20:1 selectivity for cross-coupled products. This strategy offers a new approach to achieving the selective cross-coupling of nucleophiles.