115437-57-5Relevant articles and documents
Fused Pyrimidines by a Tandem Aza-Wittig / Electrocyclic Ring Closure Strategy: Synthesis of Pyrazolo pyrimidyne, Triazolo pyrimidyne, and Thiazolo pyrimidyne Derivatives
Molina, Pedro,Arques, Antonio,Vinader, Maria Victoria
, p. 4654 - 4662 (2007/10/02)
The aza-Wittig reaction of iminophosphoranes derived from 5-azido -4-formylazoles or 4-azido-5-formylazoles with heterocumulenes leads to functionalized fused pyrimidines.Iminophosphoranes 12, derived from 5-azido-4-formylpyrazole, react under mild condit