作者:Y. Ito、T. Matsuura
DOI:10.1016/0040-4020(75)87066-9
日期:1975.1
Upon irradiation at 253·7 nm, 2-isoxazolines undergo three types of formal [2 + 2] cycloreversions, in addition to 1,2-bond cleavage followed by further transformation. To determine whether the localized excitation of a particular chromophore is responsible for each type of reaction, the effects of sensitizer, quencher and excitation wave-length were examined with selected 2-isoxazolines. It is suggested
在253·7 nm处进行辐照后,除了1,2-键断裂外,2-异恶唑啉还经历了三种类型的形式[2 + 2]环还原,然后进一步转化。为了确定特定发色团的局部激发是否是每种反应的原因,用所选的2-异恶唑啉检查了敏化剂,猝灭剂和激发波长的影响。建议对于具有苯基酮肟基和4-芳基和/或5-芳基的2-异恶唑啉,4-或5-芳基的激发单线态引起一些产物的形成,而被激发的苯基酮肟基团的单重态对他人负责。