STUDIES ON ORGANOPHOSPHORUS COMPOUNDS 102 : A CONVENIENT STEREOSPECIFIC SYNTHESIS OF DIALKYL 1-ALKYL(ARYL)-2-NITROETH-1-ENYLPHOSPHONATES

Abstract Dialkyl 1-alkyl(aryl)-2-nitroeth-1-enylphosphonates were prepared by treatment of dialkyl 1-alkyl(aryl)-1-hydroxyl-2-nitroalkylphosphonates with thionyl chloride and pyridine. The dehydration process underwent stereospecifically providing exclusively the E-isomers. An E2 reaction mechanism was suggested.