Nickel-catalyzed cross-coupling of sterically hindered 1-bromomethyl-o-carborane with alkyl and aryl Grignard reagents
作者:Juyou Lu、Hong Wan、Yunna Xue、Yongmei Du、Jian Lu
DOI:10.1016/j.tet.2015.08.022
日期:2015.10
A convenient and efficient Ni-catalyzed reaction has been developed for synthesis of mono-substituted o-carboranes, involving cross-coupling of readily available and stericallyhindered 1-bromomethyl-o-carborane with various alkyl and aryl Grignardreagents under mild conditions, and the corresponding o-carborane derivatives were obtained in good to excellent yields. This method should provide a new
Copper-catalyzed cross-coupling of 1-haloalkyl -o- carboranes with Grignard reagents: an efficient route to monosubstituted o- carborane derivatives
作者:Ju-You Lu、Yongmei Du、Bo Zhao、Jian Lu
DOI:10.1016/j.tet.2015.11.019
日期:2016.1
A convenient and efficient copper-catalyzed reaction has been developed for the synthesis of functionalized o-carborane derivatives by using a Cu/phosphine catalytic system. Cross-coupling of readily available 1-haloalkyl-o-carboranes with Grignard reagents proceeds efficiently under mild conditions, and the corresponding monosubstituted o-carboranes were obtained in good to excellent yields. (C) 2015 Elsevier Ltd. All rights reserved.