Bottleable NiCl2(dppe) as a catalyst for the Markovnikov-selective hydroboration of styrenes with
Toru Hashimoto1, Toshiya Ishimaru1, Keisuke Shiota1
1Department of Advanced Materials Chemistry, Graduate School of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan. hashimoto-toru-kh@ynu.ac.jp yamaguchi-yoshitaka-hw@ynu.ac.jp.
Abstract:
Although transition-metal-catalysed hydroboration reactions of alkenes have been extensively studied, only three examples using Ni complexes have been reported so far. In this study, we have examined hydroboration reactions of alkenes using Ni/phosphine complexes. The commercially available and bottleable complex NiCl2(dppe) (dppe = 1,2-bis(diphenylphosphino)ethane) serves as a catalyst for the highly Markovnikov-selective hydroboration of styrene derivatives that affords the desired Markovnikov products in high yield.
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