申请人:Schmidt-Leithoff Joachim
公开号:US20100152494A1
公开(公告)日:2010-06-17
The present invention relates to a process for preparing optically active carbonyl compounds by asymmetrically hydrogenating α,β-unsaturated carbonyl compounds in the presence of optically active transition metal catalysts which are soluble in the reaction mixture and have at least one carbon monoxide ligand, the optically active catalyst which has at least one carbon monoxide ligand and is to be used in each case being prepared by pretreating a catalyst precursor with a gas mixture comprising carbon monoxide and hydrogen and the asymmetric hydrogenation being performed in the presence of carbon monoxide supplied additionally to the reaction mixture.
本发明涉及一种制备光学活性羰基化合物的方法,该方法通过在光学活性过渡金属催化剂的存在下,对α,β-不饱和羰基化合物进行不对称氢化反应来实现。所述催化剂在反应混合物中可溶,且具有至少一个一氧化碳配体。每种要使用的具有至少一个一氧化碳配体的光学活性催化剂均通过使用含有一氧化碳和氢气的气体混合物对催化剂前体进行预处理而制备,并在反应混合物中额外供应一氧化碳的存在下进行不对称氢化反应。