(E)-(4S,5S)-2-ethenyl-1,3-dimethyl-4,5-diphenylimidazolidine-2-propanal 4-methylphenylsulfonylhydrazone 在
potassium tert-butylate 作用下,
以
甲苯 为溶剂,
反应 20.0h,
生成 1',3'-dimethyl-4'S,5'S-diphenyl-1,3aS,4,5,6,6aS-hexahydrospiro[cyclopentapyrazole-4,2'-imidazolidine]