ethyl 3,3-bis(N-(3-(3,4-dimethylphenyl)prop-2-ynyl)-4-methylphenylsulfonamido)acrylate 在
silver trifluoromethanesulfonate 作用下,
以
二氯甲烷 为溶剂,
反应 12.0h,
以60%的产率得到ethyl 6,9-bis(3,4-dimethylphenyl)-3-tosyl-4-(tosylimino)-3-azabicyclo[5.2.0]nona-1(9),6-diene-5-carboxylate