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Chiral Bicyclic NHC/Cu Complexes for Catalytic Asymmetric Borylation of α,β-Unsaturated Esters

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journal contribution
posted on 17.10.2019 by Yuya Miwa, Takumi Kamimura, Kiyoaki Sato, Daichi Shishido, Kazuhiro Yoshida
The potential of using chiral bicyclic NHC ligands that exhibit modularity was investigated in the Cu-catalyzed asymmetric borylation reaction of α,β-unsaturated esters. After screening for ligands and optimization of the reaction conditions, the corresponding products were afforded with good enantioselectivities (up to 85% ee).