A Novel and Convenient Synthesis of E,E-bis(Styryl) sulfones and E,E-1,4-Diaryl-1,3-butadienes

M. V. Ramana Reddy The Wistar Insitute, 3601 Spruce Street, Philadelphia, PA, 19104, USA

A. B. Manjubhashini Pondicherry Engineering College, Pondicherry, 605104, India

S. Reddy Department of Chemistry, S. V. University, Tirupati, 517502, India

P. V. Ramana Reddy Department of Chemistry, S. V. University, Tirupati, 517502, India

D. Baskar Reddy Department of Chemistry, S. V. University, Tirupati, 517502, India

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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A Novel and Convenient Synthesis of E,E-bis(Styryl) sulfones and E,E-1,4-Diaryl-1,3-butadienes

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A Novel and Convenient Synthesis of E,E-bis(Styryl) sulfones and E,E-1,4-Diaryl-1,3-butadienes

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