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期刊论文

Asymmetric hydrocyanation of olefins catalyzed by chiral diphosphite-nickel complexes

鄢明Ming Yan Qian-Yong Xu and Albert S. C. Chan*

Tetrahedron: Asymmetry 11(2000)845-849,-0001,():

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摘要/描述

Chiral aryl diphosphite ligands derived from binaphthol were found to be effective in the nickel-catalyzed hydrocyanation of a variety of olefins. Enantioselective hydrocyanations of styrene, 4-substituted styrenes and norbornene were achieved with excellent regioselectivity and moderate enantioselectivity. The hydrocyanation of vinyl acetate gave 72.9% ee. The catalytic activity and the enantioselectivity of the Ni(0)-diphosphite complexes were found to be highly dependent on the structures of the ligands.

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版权说明:以下全部内容由鄢明上传于   2009年04月20日 10时48分22秒,版权归本人所有。

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