反应详情

0.01 mol. of 8-furfuryl-5-phenyloxy-8H-pyrazolo[4',3':5,6]pyrido[3,4-e][1,2,4]triazolo[1,5-a]pyrimidine is heated in 50 ml. of diethyleneglycol dimethyl ether containing 0.01 mol. of selenium dioxide at reflux temperature with stirring for two hours. The mixture is filtered hot and evaporated to dryness. 5-Phenyloxy-8H-pyrazolo[4',3':5,6]pyrido[3,4-e][1,2,4]triazolo[1,5-a]pyrimidine remains.

1. filtrationThe mixture is filtered hot
2. customevaporated to dryness