作者:Yu Tang、Chaozhong Li
DOI:10.1021/ol049052+
日期:2004.9.1
(BF3OEt2)-O-.-catalyzed atom-transfer radical addition of iodoacetamides to alkynes yielded the corresponding vinyl iodides, which upon treatment with (BuOCl)-Bu-t and I-2 afforded gamma-lactam derivatives in moderate to good yield. The mechanism was proposed to be 5-endo amidyl radical cyclization, and vinylic iodine substitution provided the driving force for the cyclization.
(BF3OEt2)-O-.-催化的原子转移自由基加成使碘乙酰胺与炔烃反应,生成相应的乙烯碘化物。这些乙烯碘化物经(BuOCl)-Bu-t和I-2处理后,以中等到良好的产率得到γ-内酰胺衍生物。该反应的机理被提出为5-endo酰基自由基环化,而乙烯碘的取代反应为环化提供了驱动力。