The reaction of chloral or dichloro(phenyl)acetaldehyde N-arylsulfonylimines with cyclopentadiene, depending on the reaction conditions, affords either Diels–Alder adducts, 2-arylsulfonyl-2-azabicyclo[2.2.1]hept-5-enes, or unexpectedly new amidoalkylated derivatives of cyclopentadiene, N-[(cyclopentadienyl)(polychloromethyl)methyl]arenesulfonamides.
氯醛或二
氯(苯基)
乙醛N-芳基磺
酰亚胺与
环戊二烯的反应,根据反应条件而定,可以得到狄尔斯-阿尔德加合物,2-芳基磺酰基-
2-氮杂双环[2.2.1]庚-5-烯或意外地新
环戊二烯的酰胺基烷基化衍
生物,N-[(
环戊二烯基)(聚
氯甲基)甲基]
芳烃磺酰胺。