A Novel and Convenient Synthesis of E,E-bis(Styryl) sulfones and E,E-1,4-Diaryl-1,3-butadienes |
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| Authors: | M V Ramana Reddy A B Manjubhashini S Reddy P V Ramana Reddy D Baskar Reddy |
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| Institution: | 1. The Wistar Insitute , 3601 Spruce Street, Philadelphia, PA, 19104, USA;2. Pondicherry Engineering College , Pondicherry, 605104, India;3. Department of Chemistry , S. V. University , Tirupati, 517502, India |
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| Abstract: | The condensation of 2-phenylethanesulfonylacetic acid (4) with araldehydes (5) in presence of a base gave E-styryl-2-phenylethyl sulfones (6) which on dehydrogenation with DDQ (7) yielded E,E-bis-(styrl)sulfones (8). The 8 on treatment with dichlorotris(triphenyl-phosphine)ruthenium(II) catalyst resulted 1,4-diaryl-1,3-butadienes (9). The configurations of 6, 8 and 9 have been determined based on IR and 1H NMR spectral data. |
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