The reaction of organocerium reagents with chiral aliphatic imines derived from (R)-O-methylphenylglycinol afforded the corresponding amines with high diastereoselectivity. In contrast, the reaction of Grignard reagents with chiral 2-alkyl-1, 3-oxazolidines derived from (R)-N-methylphenylglycinol afforded the amines with changeover in diastereoselectivity.
有机
铈试剂与源自(R)-O-甲基苯基甘
氨醇的手性脂肪胺反应,得到相应的胺,具有高的非对映选择性。相反,
格氏试剂与源自(R)-N-甲基苯基甘
氨醇的手性2-烷基-1,3-
噁唑烷反应时,胺的非对映选择性发生了变化。