The lithiation of (arene)tricarbonylchromium acetal complexes with the organolithium reagents derived from (1R)-menthyl chloride and (1R)-8-phenylmenthyl chloride occurs at the pro-R site (up to 70% ee) and the pro-S(up to 80% ee), respectively.
(
芳烃)三羰基
铬缩醛配合物与源自(1R)-
氯薄荷和(1R)-8-苯基薄荷
氯的
有机锂试剂的
锂化发生在pro-R位点(高达70% ee)和pro-S(分别高达 80% ee)。