作者:H. Mohindra Chawla、Manisha Pathak
DOI:10.1016/s0040-4020(01)86697-7
日期:1990.1
Imidazolin-2-ones(-) on photooxygenation in the presence of methylene blue yielded the corresponding diacylureas as the only products isolated at room temperature. The rate of photooxygenation followed the order >>>>>. The reaction was also studied at pH 4.4, 6.0 and 9.2 as well as in solvents of varying dielectric constants to explore the nature of the intermediates. It appears that the reaction involves
咪唑啉-2-酮(- )在亚甲基蓝的存在下进行光氧合,得到相应的二酰基脲,这是在室温下分离出的唯一产物。光氧化的速率依次为> > > > > 。还在pH 4.4、6.0和9.2以及在介电常数不同的溶剂中研究了该反应,以探索中间体的性质。看来该反应涉及两性离子过氧化物的形成,导致两氧杂环丁烷分解,生成二酰基脲。