Benzenetellurinyl trifluoromethanesulfonate in conjunction with acetonitrile underwent an E-stereoselective amidotellurinylation reaction with alkynes, but the addition products from terminal alkynes tended to isomerize thermally to (Z)-β-acetamidovinyl phenyl telluroxide, whereas those from internal alkynes were transformed into oxazoles via a spontaneous intramolecular cyclization.
苯并
碲基
三氟甲磺酸盐与
乙腈在与
炔烃进行E型选择性酰
氨基
碲化反应中,端炔的加成产物倾向于热异构化为(Z)-β-乙酰
氨基
乙烯基苯基
碲氧化物,而内炔的加成产物则通过自发分子内环化转化为
噁唑类化合物。