Oxidative cyclization followed by concomitant bromination led to the formation of [1,2,4]triazolo[4,3-c]pyrimidines, which then underwent the Dimroth rearrangement to afford highly functionalized 2-substituted [1,2,4]triazolo[1,5-c]pyrimidines.
研究了容易获得的
氯嘧啶基腙与
溴的反应。氧化环化随后伴随
溴化导致形成[1,2,4]三唑并[4,3-c]
嘧啶,然后经过Dimroth重排得到高度官能化的2-取代[1,2,4]三唑并[1,2,4]三唑并[4,3-c]
嘧啶。 1,5-c]
嘧啶。