作者:Frederick Kurzer、Jane L. Secker
DOI:10.1016/s0040-4020(01)92462-7
日期:1981.1
1-amino-2-thioaroylamidoguanidines which are isolable as their stable hydrazones. They are unaffected by alkalis, but are cyclised by mineral acids, with loss of ammonia, to hydrazones of 2-aryl-5-hydrazino-1,3,4-thiadiazoles, or with elimination of hydrazine, to the appropriate 2-amino-5-aryl-1,3,4-thiadiazoles. The action of acetic anhydride effects the same ring-closures, yielding the corresponding acetylated
1,2-二氨基胍的硫代苯甲酰化反应产生1-氨基-2-硫代芳基酰胺基胍,它们可作为稳定的而分离。它们不受碱的影响,但被无机酸环化,失去氨,生成2-芳基-5-肼基-1,3,4-噻二唑的azo,或消除肼,生成合适的2-氨基- 5-芳基-1,3,4-噻二唑。乙酸酐的作用影响相同的闭环,产生相应的乙酰化产物。1,2-二氨基-3-苯基胍经历了一系列类似的反应。