A Novel and Convenient Synthesis of E,E-bis(Styryl) sulfones and E,E-1,4-Diaryl-1,3-butadienes
作者:M. V. Ramana Reddy、A. B. Manjubhashini、S. Reddy、P. V. Ramana Reddy、D. Baskar Reddy
DOI:10.1080/00397919108021058
日期:1991.8
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
摘要 2-苯基乙磺酰乙酸 (4) 与芳醛 (5) 在碱存在下缩合生成 E-苯乙烯基-2-苯基乙基砜 (6),其与 DDQ (7) 脱氢生成 E,E-双-(苯乙烯基) ) 砜 (8)。用二氯三(三苯基膦)钌(II)催化剂处理8后得到1,4-二芳基-1,3-丁二烯(9)。6、8 和 9 的构型已根据 IR 和 1H NMR 光谱数据确定。