作者:Chiara B. Vicentini、Augusto C. Veronese、Maurizio Manfrini
DOI:10.1002/jhet.5570340246
日期:1997.3
The synthesis of imidazo[4,5-c]pyrazol-5-ones (6) is reported. 5-Amino-4-ethoxycarbonylaminopyra-zoles 3a-g when heated at 200° for 2 hours afford 6a-g. In a similar manner imidazo[4,5-c]pyrazol-5-one (6a) is readily obtained from 4-amino-5-ethoxycarbonylaminopyrazole (5a).
报道了咪唑并[4,5 - c ]吡唑-5-酮的合成(6)。当在200°加热2小时时,5-氨基-4-乙氧基羰基氨基吡唑3a-g得到6a-g。以类似的方式,从4-氨基-5-乙氧基羰基氨基吡唑(5a)容易获得咪唑并[4,5 - c ]吡唑-5-酮(6a)。