tert-butyl 7-[(diphenoxyphosphoryl)oxo]-2,3,4,5-tetrahydro-1H-azepine-1-carboxylate 、 (2S,5S)-(-)-1-oxo-2,5-diphenylphospholane 在
(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride 、
N,N-二异丙基乙胺 作用下,
以
二甲基亚砜 为溶剂,
反应 2.0h,
以70%的产率得到7-((2S,5S)-1-oxo-2,5-diphenyl-λ5-phospholan-1-yl)-2,3,4,5-tetrahydro-azepine-1-carboxylic acid tert-butyl ester