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A modified procedure for the synthesis of 5-amino-3-arylisoxazoles and their reactions with tetrasulfur tetranitride antimony(V) chloride complex (S4N4 center dot SbCl5): Novel synthesis of 3-aryl-1,2,5-thiadiazole-4-carboxamides
- Issue Date
- Jan-2001
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Citation
- HETEROCYCLES, v.55, no.1, pp.75 - 89
- Journal Title
- HETEROCYCLES
- Volume
- 55
- Number
- 1
- Start Page
- 75
- End Page
- 89
- ISSN
- 0385-5414
- Abstract
- Dropwise addition of alpha -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 degreesC afforded novel 3-aryl-1,2,5-thiadiazole-4-carboxamides.
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