title: Selective synthesis of alkylboronates by copper(I)-catalyzed borylation of allyl or vinyl arenes.
abstract: An efficient copper-catalyzed borylation reaction of allyl or vinyl arenes with bis(pinacolato)diboron has been developed, without using ligands. Markovnikov-selectivity is observed in the borylation of allyl arenes with bis(pinacolato)diboron, while the regioselectivity is completely opposite when styrene derivatives are used as substrates. A mechanism involving Cu-B species regioselectively adding olefin double bonds to form the alkylcopper or η(3)-benzyl copper intermediate, which is followed by protonation to obtain products, is proposed.
authors: †College of Science, Guangdong Ocean University, Zhanjiang 524088, China.|‡State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China.
authors: Yanmei
authors: Y
authors: Wen
authors: †College of Science, Guangdong Ocean University, Zhanjiang 524088, China.
authors: Jianying
authors: J
authors: Xie
authors: †College of Science, Guangdong Ocean University, Zhanjiang 524088, China.
authors: Chunmei
authors: C
authors: Deng
authors: †College of Science, Guangdong Ocean University, Zhanjiang 524088, China.
authors: Chaode
authors: C
authors: Li