Treatment of 2-arylazo-1,1-dimethylguanidines (1) with phosgene yields the novel 1,2,3,5-tetrazinones (2), together with isomeric dipolar triazolinones (4); both types of product decompose to give nitrogen, dimethylcyanamide, and aryl isocyanate.
用
光气处理2-芳基偶氮-
1,1-二甲基胍(1)可得到新型的1,2,3,5-四嗪酮(2),以及同分异构的偶极
三唑啉酮(4);两种产品都会分解,得到氮,二甲基
氰酰胺和异
氰酸芳基酯。