AbstractA simple and efficient catalytic oxidation of urazoles and a bis-urazole to the corresponding triazolinediones by treatment with Al(NO3)3.9H2O in the presence of a catalytic amount of silica sulfuric acid is described. A good range of urazole derivatives was selectively oxidized in CH2Cl2 at room temperature in good to excellent yields. Graphical abstract
摘要描述了在催化量的
二氧化硅硫酸存在下,通过用Al(NO 3)3 .9H 2 O处理,将
尿素和双-
尿素简单有效地催化氧化为相应的三唑啉二酮的方法。在室温下,在CH 2 Cl 2中以良好或极好的收率选择性氧化了一系列的urazole衍
生物。 图形概要