Intermolecular aza-wittig reaction: One-step synthesis of pyrazolo[1,5-<i>a</i>]pyrimidine and imidazo[1,2-<i>b</i>]pyrazole derivatives
作者:Magda A. Barsy、Eman A. El-Rady
DOI:10.1002/jhet.5570430301
日期:2006.5
Pyrazolo[1,5-a]pyrimidine and imidazo[1,2-b]pyrazole derivatives were synthesized via intermolecular aza-Wittig reaction of 5-(triphenylphosphoranylideneamino)-3-phenylpyrazole 3 derived from 5-amino-3-phenylpyrazole with some selected α-chloroketones.
吡唑并[1,5- a ]嘧啶和咪唑并[1,2- b ]吡唑衍生物是通过由5-氨基-3-苯基吡唑衍生的5-(三苯基磷酰亚烷基氨基)-3-苯基吡唑3的分子间氮杂-Wittig反应合成的。选择的α-氯酮。