作者:Johannes C.G. Van Niel、Upendra K. Pandit
DOI:10.1016/s0040-4020(01)91441-3
日期:1985.1
Imines derived from p-substituted acetophenones and (+) R-1-phenylethylamine are reduced by 3,5-diethoxycarbony1-2,6-dimethyl-1,4-dihydro-pyridine (Hantzsch ester), in acetonitrile, in the presence of magnesium perchlorate, to diastereomeric mixtures of the corresponding N-1-arylethyl, N-1-phenylethylamines. The reduction proceeds diastereoselectivity with the R,R-diastereomer being formed predominantly
在乙腈存在下,在乙腈中,将3,5-二乙氧基羰基1-2,6-二甲基-1,4-二氢吡啶(Hantzsch酯)还原由对位取代的苯乙酮和(+)R-1-苯基乙胺衍生的亚胺。高氯酸镁转化为相应的N-1-芳基乙基,N-1-苯基乙胺的非对映异构体混合物。还原进行非对映选择性,主要形成R,R-非对映异构体。讨论了还原选择性的机械方面。