The reaction of 2-aminobenzoxazoles with benzonitriles in the presence of anhydrous tin(IV) chloride gives N-(benzoxazol-2-yl)benzamidines in high yields. Cyclodehydrogenation of these compounds with lead(IV) acetate affords 2-aryl[1,2,4]triazolo[5,1-b]benzoxazoles in good yields.
在无
水氯化锡(IV)存在下,2-
氨基
苯并恶唑与苯并腈发生反应,可得到高产率的 N-(
苯并恶唑-2-基)苯甲酰胺。用
醋酸铅(IV)对这些化合物进行环氢化反应,可以得到 2-芳基[1,2,4]三唑并[5,1-b]
苯并恶唑,收率很高。