Abstract
Supported nickel catalysts were prepared from nickel acetylacetonate, and then modified in a solution containing tartaric acid and NaBr. The effects of the catalyst preparation conditions on the optical yields and those of the Ni surface modification process on optical yields were examined in the enantio-differentiating hydrogenation of methyl acetoacetate. The maximal optical yield of 86% was attained when zeolite was used as the support.
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