Photochemical Generation of Aziridinium Imides: Are AIs Bystanders or Perpetrators in the Ene Reaction?
作者:Michael E. Squillacote、Carl Garner、Lon Oliver、Mark Mooney、Yu-Ling Lai
DOI:10.1021/ol702237x
日期:2007.12.1
A non-equilibrating mixture of two aziridinium imides (AIs) resulting from the photoaddition of N-methyl-1,2,4-triazoline-3,5-dione and cycloheptene has been prepared. Warming the AIs produces only the product of the expected ene reaction with no back-reaction to starting materials. Even though one of the pair does not have the geometry necessary for hydrogen abstraction, both AIs disappear at essentially
制备了由N-甲基-1,2,4-三唑啉-3,5-二酮与环庚烯的光加成反应生成的两种叠氮酰亚胺(AIs)的非平衡混合物。加热AI只会产生预期的烯反应的产物,而不会与起始原料发生逆反应。即使这对中的一个不具有提取氢所需的几何形状,两个AI的消失速度基本相同,这表明AI不能成为烯类产物的直接前体。