Radical Borylative Cyclization of 1,6-Dienes: Synthesis of Boron-Substituted Six-Membered Heterocycles and Carbocycles
作者:Jing Qi、Feng-Lian Zhang、Yun-Shuai Huang、Ai-Qing Xu、Shi-Chao Ren、Zhen-Yu Yi、Yi-Feng Wang
DOI:10.1021/acs.orglett.8b00694
日期:2018.4.20
A radical borylative cyclization reaction of 1,6-dienes was developed to assemble boron-handled six-membered heterocycles and carbocycles. This reaction was initiated by the chemo- and regio-controlled addition of an N-heterocyclic carbene–boryl radical to one of the alkene tethers, followed by an intramolecular 6-exo cyclization to afford a six-membered ring framework. The utility of this method was