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Start Over Author "Shangguan, Yu" Topic cross-coupling
2 results on '"Shangguan, Yu"'

1. Enantioselective Copper‐Catalyzed Three‐Component Carboboronation of Allenes: Access to Functionalized Dibenzo [b,f][1,4]oxazepine Derivatives.

Author

Deng, Hao, Meng, Ziwei, Wang, Sifan, Zhang, Zheming, Zhang, Yaqi, Shangguan, Yu, Yang, Fazhou, Yuan, Dekai, Guo, Hongchao, and Zhang, Cheng

Subjects
ALLENE, AZEPINES, IMINES, PERSONAL identification numbers, CATALYSIS
Abstract

A copper‐catalyzed enantioselective three‐component difunctionalization of allenes with seven‐membered cyclic imines and bis(pinacolato)diboron (B2(Pin)2) to approach functionalized dibenzo[b,f][1,4]oxazepine derivatives is developed. The chiral products are obtained in up to 81% yield, >20:1 dr, and 98% ee when either a chiral diphosphine ligand or a chiral ferrocenyl‐based P,N‐ligand is used. Furthermore, the reaction exhibits reversed diastereoselectivities when the chiral diphosphine ligand and the chiral P,N‐ligand are used respectively. [ABSTRACT FROM AUTHOR]

Published
2019
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