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Synthesis and Reactions of Some 1-Thiapyran-4-One Derivatives |
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| Authors: | A. A. El-Barbary F. M. E. Abdel-Megeid F. A. Gad |
| Abstract: | The preparation of some 3,5-diarylidene-1-thipyran-4-one derivatives (Ia-e) was described. Oxidation of Ia, b and Ie with hydrogen peroxide gave the corresponding dioxides (IIa-c). Reaction of the 1-thiapyran-4-one derivatives with bromine, Grignard reagents, and amines were studied. Structural assignments are supported by spectral (UV, IR, and 1HNMR) data. |
| Keywords: | Synthesis and reactions of 1-thiapyran-4-one derivatives with bromine Grignard reagents Amines |