Homogeneous and heterogeneous catalytic asymmetric reactions IV. Hydrogenation of the Ni complexes of cinnamic acid salts over MRNi catalyst
作者:Mihály Bartók、Gyula Wittmann、Gizella B. Bartók、György Göndös
DOI:10.1016/0022-328x(90)87130-6
日期:1990.3
Substituted cinnamicacids containing a prochiral CC bond, and their LiI, KI, NiII and CaII salts, were prepared and their surface complexes on Ni were studied over a Raney-Ni catalyst modified with tartaric acid. The hydrogenation product of sodium cinnamate is optically active. Of the alkali metal salts of (E)-α-phenylcinnamic acid, the hydrogenation of the Na salt gives the highest optical yield