butyl[2,4-di(benzyloxycarbonyl)butyl]phosphinic acid 以
水 为溶剂,
反应 4.5h,
以to give 2-[(butylhydroxyphosphinyl) methyl]-pentanedioic acid (4, R=n-butyl) (0.75 g, 43%) as a clear and colorless viscous oil的产率得到2-[[butylhydroxyphosphinyl]methyl]pentanedioic acid