Tetrahedron

Tunable phosphinite, phosphite and phosphoramidite ligands for the asymmetric hydrovinylation reactions

H Park, R Kumareswaran, TV RajanBabu

文献索引：Park, Haengsoon; Kumareswaran, Ramaiah; RajanBabu Tetrahedron, 2005 , vol. 61, # 26 p. 6352 - 6367

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被引用次数: 49

摘要

Only a limited number of ligands have been successfully employed for the Ni-catalyzed asymmetric hydrovinylation reaction. Diarylphosphinites, carrying β-acylamino groups prepared from readily available carbohydrates, in conjunction with highly dissociated counteranions {[(3, 5-(CF3) 2C6H3] 4B− or SbF6−}, effect the hydrovinylation of vinylarenes under ambient pressure of ethylene with high enantioselectivity. Nitrogen substituents ...