Solution phase synthesis of imidazo[1,2-b]pyrazol-2-one, an interesting 5,5-fused heterocyclic ring system
作者:Benjamin E. Blass、Anil Srivastava、Keith R. Coburn、Amy L. Faulkner、John J. Janusz、James M. Ridgeway、William L. Seibel
DOI:10.1016/j.tetlet.2003.10.177
日期:2004.1
The solution phase synthesis of a series of imidazo[1,2-b]pyrazol-2-ones, a fused 5,5-ring system, based on diverse set of hydrazino acids and malononitriles is described. The method involves formation of 5-aminopyrazoles followed by intra-molecular cyclodehydration.
描述了一系列基于肼基酸和丙二腈的咪唑并[1,2-b]吡唑-2-酮(稠合的5,5-环系统)的溶液相合成。该方法包括形成5-氨基吡唑,然后进行分子内环脱水。