作者:Gerald Pattenden、Brian J. Walker
DOI:10.1039/j39690000531
日期:——
cis- and trans- Isomers of derivatives of 3-halogenoacrylic acids undergo nucleophilic displacement reactions with triphenylphosphine, tri-n-butylphosphine, and triethyl phosphite to produce the correspondingtrans-vinyl-phosphonium salts and -phosphonates exclusively. 1H n.m.r.spectra are reported for these compounds. The mechanism of the displacement reaction is discussed.
3-卤代丙烯酸衍生物的顺式和反式异构体与三苯基膦,三正丁基膦和亚磷酸三乙酯进行亲核取代反应,仅生成相应的反式-乙烯基-盐和-膦酸酯。据报道这些化合物的1 H nmr光谱。讨论了置换反应的机理。