The present invention provides a catalyst used for manufacturing an optically active carbonyl compound by selective asymmetric hydrogenation of an α,β-unsaturated carbonyl compound, which is insoluble in a reaction mixture, and a method for manufacturing the corresponding optically active carbonyl compound. Particularly, the invention provides a catalyst for obtaining an optically active citronellal useful as a flavor or fragrance, by selective asymmetric hydrogenation of citral, geranial or neral. The invention relates to a catalyst for asymmetric hydrogenation of an α,β-unsaturated carbonyl compound, which comprises: a powder of at least one metal selected from metals belonging to Group 8 to Group 10 of the Periodic Table, or a metal-supported substance in which the at least one metal is supported on a support; an optically active peptide compound; and an acid, and also relates to a method for manufacturing an optically active carbonyl compound using the same.
本发明提供了一种催化剂,用于通过选择性不对称氢化α,β-不饱和羰基化合物制造光学活性羰基化合物,该催化剂在反应混合物中不溶,以及制造相应的光学活性羰基化合物的方法。特别地,本发明提供了一种催化剂,通过选择性不对称氢化
柠檬醛、香叶醛或
柠檬醛萜烯,可获得一种用作
香料或芳香剂的光学活性
香茅醛。本发明涉及一种不对称氢化α,β-不饱和羰基化合物的催化剂,包括:来自周期表第8至第10组
金属的至少一种
金属的粉末,或者至少一种
金属被支持在支持体上的
金属支持物质;光学活性肽化合物;和酸,并且涉及使用该催化剂制造光学活性羰基化合物的方法。