Fused Triazines Via a Tandem Wittig/Ring Closure Strategy: Synthesis of Pyrazolo[5,1-<i>c</i>]-1,2,4-Triazines and 1,2,4-Triazolo[5,1-<i>c</i>]-1,2,4-Triazines
作者:Magda A. Barsy
DOI:10.1002/jccs.200300169
日期:2003.12
A new method for the synthesis of azolo[5,1-c]-1,2,4-triazine ring systems is reported by the sequential formation of triazine ring based on the regioselective formation of the azophosphoranes from hydrazonyl chlorides, followed by the intermolecular Wittig reaction with carboxylic acid chlorides, phenylisocyanate, and carbon disulfide.
报道了一种合成偶氮[5,1-c]-1,2,4-三嗪环系统的新方法,该方法是基于从氯化肼区域选择性形成偶氮正膦的顺序形成三嗪环,然后是分子间与羧酸氯化物、苯基异氰酸酯和二硫化碳发生 Wittig 反应。