作者:Janusz Moskal、Alexandra Moskal、Piotr Milart
DOI:10.1016/0040-4020(82)80251-2
日期:1982.1
1-Oxa-4-azabutadienes proved to be prone to react with some heterocumulenes after 1,3-cycloaddition patterns yielding various 5,5-disubstituted derivatives of 1,3-diaryl-hydanotoins as it was shown by the chemical and spectroscopic analysis. Relatively high yields, mild reaction conditions and a very weak effect of solvent polarity on the reaction rate suggested a synchroneous mechanism involving 1
化学和光谱分析表明,在1,3-环加成反应后,1-Oxa-4-azabutadienes易于与某些杂异丙基苯发生反应,生成1,5-二芳基-乙内酰脲苷的各种5,5-二取代衍生物。相对较高的收率,温和的反应条件和溶剂极性对反应速率的非常弱的影响表明了涉及取代基的1,2-迁移的同步机理。