4-dinitro-C,O-benzoate complex modified by (R)- or (S)-Cl,MeO-BIPHEP promotes the transfer hydrogenative coupling of allyl acetate to β-stereogenic alcohols with good to excellent levels of catalyst-directed diastereoselectivity to furnish homoallylic alcohols. Remote electronic effects of the C,O-benzoate of the catalyst play a critical role in suppressing epimerization of the transient α-stereogenic
( R )-或( S )-Cl,MeO-BIPHEP修饰的环
金属化π-烯丙基3,4-二硝基-C,O-
苯甲酸配合物促进
乙酸烯丙酯向β-立体醇的转移加氢偶联,具有良好到优异的性能提供高
烯丙醇的催化剂导向的非对映选择性
水平。催化剂的C,O-
苯甲酸酯的远程电子效应在抑制瞬态 α-立体醛的差向异构化方面起着关键作用。