作者:Claudio C. Silveira、Rodrigo Cella、Antonio L. Braga、Raquel G. Jacob、Eder J. Lenardão、Gelson Perin
DOI:10.1016/j.tet.2005.05.085
日期:2005.8
New and efficient methods were developed to prepare ketene organyltelluroacetals in moderate to excellent yields. This was accomplished by reaction of phenyl- or butyltelluromethylphosphonates with phenyl- or butyltellurenyl halides and aldehydes or cyclohexanone, under basic conditions. This Horner–Wittig protocol allows the preparation of several new tri- and tetra-substituted olefins.
已开发出新的有效方法来以中等至优异的收率制备乙烯酮有机基乙醛缩醛。这是通过在碱性条件下使苯基-或丁基-碲二甲基膦酸酯与苯基或丁基-碲二烯基卤化物和醛或环己酮反应来完成的。该Horner-Wittig方案允许制备几种新的三取代和四取代的烯烃。