Synthesis of Novel Spiro Tetrahydrothiapyrano-Isoxazolines and Pyrazolines |
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| Authors: | D. Bhaskar Reddy A. Somasekhar Reddy A. Padmaja |
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| Affiliation: | Department of Chemistry , Sri Venkateswara University , Tirupati , 517 502 , India |
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| Abstract: | Cis 2,6-Diphenyltetrahydrothiapyranone (1) was subjected to Wittig reaction to generate exocyclic double bond (2a-c). Cycloaddition of nitrile oxides and nitrile imines to the latter led to a novel spiro tetrahydrothiapyranoisoxazolines (3a-f) and spiro tetrahydrothiapyranopyrazolines (4a-f) |
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