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Paper | Regular issue | Vol 55, No. 1, 2001, pp.75-89
Published online, 1st January, 1970
DOI: 10.3987/COM-00-9042
A Modified Procedure for the Synthesis of 5-Amino-3-arylisoxazoles and Their Reactions with Tetrasulfur Tetranitride Antimony(V) Chloride Complex (S4N4ÅESbCl5) : Novel Synthesis of 3-Aryl-1,2,5-thiadiazole-4-carboxamides

Yung Cheol Kong, Kyongtae Kim,* and Yung Ja Park

*School of Chemistry and Molecular Engineering, Seoul National University, Shillim-Dong, San 56-1, Seoul 151-742 , Korea


Dropwise addition of α-bromo ketoximes to a solution of KCN in MeOH at room temperature gave 5-amino-3-arylisoxazoles in moderate to good yields. Treatment of the isoxazoles prepared with tetrasulfur tetranitride antimony (V) chloride complex (S4N4·SbCl5) in toluene at 100°C afforded novel 3-aryl-1,2,5-thiadiazole-4-carboxamides.