An expeditious procedure for the synthesis of purines from aminoimidazolecarbaldehydes
作者:Francisco Perandones、José L. Soto
DOI:10.1002/jhet.5570340514
日期:1997.9
5-amino-1-methylimidazole-4-car-baldehydes 3 with nitriles, in the presence of dry hydrogen chloride afforded to the formation of purine derivatives. This constitutes a facile and versatile one-pot synthesis of purines. The use of formamide instead of nitriles leads to the respective purines without substituents on the pyrimidine ring, 2d and 4e,f.
在干燥的氯化氢存在下,4-氨基-1,2-二甲基咪唑-5-甲醛(1)和5-氨基-1-甲基咪唑-4-甲醛3与腈的反应提供了嘌呤衍生物的形成。这构成了嘌呤的简便且通用的一锅合成。使用甲酰胺代替腈导致在嘧啶环2d和4e,f上没有取代基的各个嘌呤。