作者:Alan D. Borthwick、Michael W. Foxton、Brian V. Gray、Gordon I. Gregory、Peter W. Seale、Willam K. Warburton
DOI:10.1039/p19730002769
日期:——
3-(2-Aminothiazol-5-yl)-1,2,4-oxadiazole (7) reacts with nitrous acid in the presence of copper to give the nitro-compound (4), together with the deaminated compound 3-(thiazol-5-yl)-1,2,4-oxadiazole (8). Some similar deaminations have been observed.
用三氟乙酸酐或光气和环氧丙烷将2-硝基噻唑-5-甲醛甲醛(1)脱水,得到腈(2),该腈已转化为3-(2-硝基噻唑-5-基)-1,2 ,4-恶二唑(4)。肟(1)被乙酸酐转化为2-乙酰氧基噻唑-5-腈(5),亚硫酰氯转化为2-氯噻唑-5-腈(6)。3-(2-氨基噻唑-5-基)-1,2,4-恶二唑(7)在铜存在下与亚硝酸反应生成硝基化合物(4)和脱氨基化合物3-(噻唑-5-基)-1,2,4-恶二唑(8)。已经观察到一些类似的脱氨基。