The copper(I) catalysed aldol reaction between methyl isocyanoacetate and (S)-3-fluoro-1-(4-methylphenyl)-sulfinylacetone affords oxazoline products which, after diastereoisomer separation, give in high yields optically pure 3-fluoromethylthreonine analogues whose absolute and relative configurations have been assigned through X-ray analyses.
异氰基乙酸甲酯与(S)-3-
氟-1-(4-甲基苯基)-亚磺酰基
丙酮在
铜(I)催化下发生醛醇反应,生成
噁唑啉产物,经非对映异构体分离后,可得到高产率的光学纯 3-
氟甲基苏
氨酸类似物,这些类似物的绝对构型和相对构型已通过 X 射线分析确定。