Synthesis of 5‐(6‐Pyridazinone‐3‐yl)‐2‐Glycosylamino‐1,3,4‐Oxadiazoles |
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Authors: | Jing Tao Duo‐Zhi Wang Ling‐Hua Cao |
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Institution: | 1. Department of Chemistry, Xinjiang University, Urumqi Xinjiang, 830046, P. R. China;2. State Key Laboratory of Elemento‐organic Chemistry, Nankai University, Tianjin, 300071, P. R. China |
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Abstract: | N‐Glycosyl‐2‐(1,4,5,6‐tetrahydropyridazin‐6‐one‐3‐carbonyl)‐hydrazinecarbothioamides 3a‐3g and N‐glycosyl‐2‐(1,6‐dihydropyridazin‐6‐one‐3‐carbonyl)‐hydrazinecarbothioamides 5a‐5g were prepared by the reaction of glycosyl isothiocyanates with the compounds 1,4,5,6‐tetrahydro‐3‐hydrozinecarbonyl‐6‐pyridazinone ( 1 ) and 1,6‐dihydro‐3‐hydrozinecarbonyl‐6‐pyridazinone ( 2 ). The terminal heterocyclic compounds 1,3,4‐oxadiazole derivatives were obtained from cyclization of compounds ( 3a‐3g ) and ( 5a‐5g ) by mercuric acetate. Their structures were confirmed by IR, 1H NMR, MS and elemental analyses. |
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Keywords: | Pyridazinone Thiosemicarbazide 1 3 4‐Oxadiazole |
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