Regioselectively switchable alkyne cyclotrimerization catalyzed by the system of Ni(II)/bidentate P-ligand/Zn with ZnI2 as additive

Jiang-Tao Fan,Xin-Heng Fan,Cai-Yan Gao,Jinchao Wei,Lian-Ming Yang

Organic Chemistry Frontiers（2022）

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摘要

A simple catalyst system of Ni(PPh3)2Cl2/dppb or dppm/Zn can effect an efficient and regioselectively controlled alkyne cyclotrimerization to form 1,2,4- (with no additive) or 1,3,5-regioisomers (with the use of ZnI2...

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