作者:G. I. Gregory、P. W. Seale、W. K. Warburton、M. J. Wilson
DOI:10.1039/p19730000047
日期:——
3-Amino-1,2,4-oxadiazole (3a) has been prepared from t-butoxycarbonylamino-1,2,4-oxadiazole (3h), and also from hydroxyguanidine and formyl fluoride. The amine is unexpectedly stable; on acid hydrolysis it gives hydroxyguanidine. 3-Cyano-1,2,4-oxadiazole (3m), prepared by dehydration of 1,2,4-oxadiazole-3-carboxamide (3l), is highly reactive but thermally stable. Some reactions of the amine (3a) and
由叔丁氧基羰基氨基-1,2,4-恶二唑(3h),也由羟基胍和甲酰氟制备3-氨基-1,2,4-恶二唑(3a)。胺出乎意料地稳定;经酸水解可得到羟基胍。通过1,2,4-恶二唑-3-羧酰胺(3l)脱水制得的3-氰基1,2,4-恶二唑(3m)具有高反应活性,但具有热稳定性。描述了胺(3a)和腈(3m)的一些反应。