Tetrahedron

Synthesis of ketene phenyl-and butyltelluroacetals by a Horner–Wittig route

…, R Cella, AL Braga, RG Jacob, EJ Lenardão, G Perin

Index: Silveira, Claudio C.; Cella, Rodrigo; Braga, Antonio L.; Jacob, Raquel G.; Lenardao, Eder J.; Perin, Gelson Tetrahedron, 2005 , vol. 61, # 32 p. 7712 - 7718

Full Text: HTML

Citation Number: 13

Abstract

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.