Some β,γ-unsaturated oximes undergo an unprecedented intramolecular cycloaddition to an aryl group to afford peri-naphthisoxazoles when they are irradiated in the presence of PhI(OAc)2 and I2 or HgO and I2 in benzene or by thermal reaction with NaOCl and Et3N in CH2Cl2.
一些β,γ-不饱和
肟在
苯中,或在
苯中与PhI(
OAc)2和I2或HgO和I2照射,或与NaOCl和Et3N在
CH2Cl2中发生热反应时,会发生前所未有的分子内环加成反应,生成环
萘并
噁唑。