methyl 5-methylene-2-oxo-3-phenyltetrahydro-2H-pyran-3-carboxylate 、
N-(5,5-dimethyl-1,3,2-dioxaphosphorinan-2-oxo-2-yl)benzaldimine 在
1,1'-bis(diphenylphosphino)ferrocene 、 PdCp(η3-C3H5) 作用下,
以
甲苯 为溶剂,
反应 24.0h,
以91%的产率得到methyl 1-(5,5-dimethyl-2-oxido-1,3,2-dioxaphosphinan-2-yl)-5-methylene-2,3-diphenylpiperidine-3-carboxylate