Selenium heterocycles. XLIII. Syntheses of 3,5-Diaryl-1,2,4-thiadiazoles and 3,5-Diaryl-1,2,4-selenadiazoles
作者:A. Shafiee、M. A. Ebrahimzadeh、A. Maleki
DOI:10.1002/jhet.5570360412
日期:1999.7
tophenones 2 a series of 3,5-diaryl-1,2,4-thiadiazoles and 3,5-diaryl-1,2,4-selenadiazoles were prepared in moderate yield. Reaction of compounds 2 with thiourea or selenourea gave 2-amino-5-arylsulfonyl-4-phenylthiazole or selenazole in good yield.
从容易获得的α-芳基磺酰基-α-溴苯乙酮2开始,以中等收率制备了一系列3,5-二芳基-1,2,4-噻二唑和3,5-二芳基-1,2,4-硒代二唑。化合物2与硫脲或硒脲的反应以良好的收率得到了2-氨基-5-芳基磺酰基-4-苯基噻唑或硒唑。