2-diazo-5-(3,4-methylenedioxyphenyl)-1-(2,4,6-trimethylphenylsulfonyl)-5-hexen-2-one 在
copper(I) trifluoromethanesulfonate benzene (4S,4S')-(-)-2,2'-(1-methylethylidene)bis[4,5-dihydro-4-(phenylmethyl)oxazole] 作用下,
以
甲苯 为溶剂,
反应 1.0h,
以73%的产率得到rac-5-(3,4-methylenedioxyphenyl)-2-oxo-1-(2,4,6-trimethylphenylsulfonyl)bicyclo[3.1.0]hexane