A Cobalt-Catalyzed Alkene Hydroboration with Pinacolborane
作者:Lei Zhang、Ziqing Zuo、Xuebing Leng、Zheng Huang
DOI:10.1002/anie.201310096
日期:2014.3.3
efficient cobalt catalyst for the hydroboration of both vinylarenes and aliphatic α‐olefins with pinacolborane is described, providing the anti‐Markovnikov products with excellent regio‐ and chemoselectivity, broad functional‐group tolerance, and high turnover numbers (up to 19 800). The alkenehydroboration route is further extended to a two‐step, one‐pot hydroboration and cross‐coupling of alkylboronates
Silver(I)-mediated oxidation/cyclization of acrylamides with alkyl trifluoroborates
作者:Siyi Ding、Huaping Ren、Min Zhu、Qiang Ma、Zongcheng Miao、Pengfei Li
DOI:10.1080/00397911.2020.1846057
日期:2021.2.16
A mild silver-mediated oxidative cyclization of acrylamides has been developed by using alkyltrifluoroborates as radical precursors. It proceeds through a tandem radical addition/cyclization proce...
A silver‐catalyzed decarboxylative trifluoromethylthiolation of secondary and tertiary carboxylic acids under mild conditions tolerates a wide range of functional groups. The reaction was dramatically accelerated by its performance in an aqueous emulsion, which was formed by the addition of sodium dodecyl sulfate to water. It was proposed that the radical, which was generated from the silver‐catalyzed
Selective C−N Borylation of Alkyl Amines Promoted by Lewis Base
作者:Jiefeng Hu、Guoqiang Wang、Shuhua Li、Zhuangzhi Shi
DOI:10.1002/anie.201809608
日期:2018.11.12
synthesize various alkyl potassium trifluoroborate salts is introduced. The key to this high reactivity is the utilization of pyridinium salt activated alkylamines, with a catalytic amount of a bipyridine‐type Lewis base as a promoter. This transformation shows good functional‐group compatibility (e.g., it is unimpeded by the presence of a ketone, indole, internal alkene, or unactivated alkyl chloride) and