Methylation of t-butyl-1-dimethylphosphono-2-p-tolylsulfinyl cyclopropanecarboxylic ester occurs with full inversion of the configuration, but the stereochemistry of carbanion formation is structure-dependent. Reaction of cyclopropyl sulfoxide with i-PrMgCl leads to unprecedented 1,2 migration of the phosphoryl group.
                                    叔丁基-1-二
甲基膦酰基-2-
对甲苯基亚磺酰基
环丙烷羧酸酯的甲基化在构型完全反转的情况下发生,但碳负离子形成的立体
化学是结构依赖性的。环丙基亚砜与i -PrMgCl的反应导致
磷酰基的1,2前所未有的迁移。