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 2 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