作者:Jack A. Maddison、Peter W. Seale、Edward P. Tiley、William K. Warburton
DOI:10.1039/p19740000081
日期:——
Some trans-phenylazoformamide oximes (4) have been prepared from trans-benzenediazocyanides (3) and hydroxylamine, and converted into trans-3-phenylazo-1,2,4-oxadiazoles (5) by reaction with amide acetals or trialkyl orthoformates. Some 5-unsubstituted 3-phenylazo-1,2,4-oxadiazoles have been reduced to 3-amino-1-aryl-1,2,4-triazoles (8), but di-imide reduced 3-p-chlorophenylazo-1,2,4-oxadiazole to
一些反式-苯偶氮甲酰胺肟(4)是由反式-苯重氮氰化物(3)和羟胺制得的,并通过与酰胺缩醛或三烷基原甲酸酯反应转化为反式-3-苯基偶氮-1,2,4-恶二唑(5)。一些5-未取代的3-苯基偶氮-1,2,4-恶二唑已还原为3-氨基-1-芳基-1,2,4-三唑(8),但二酰亚胺还原了3-对-氯苯基偶氮-1 ,2,4-恶二唑转化为相应的肼。硫氰酸根将5-甲基-3-苯基偶氮-1,2,4-恶二唑转化为相应的对硫氰酸根化合物(5o)。