(Carboethoxymethylene)triphenylphosphorane 1 can undergo the tandem reaction of iodination-oxidation-Wittig reaction with alcohol in the presence of N-iodosuccinimide (NIS) and manganese dioxide. The reaction constitutes a stereoselective one-pot procedure for the preparation of Z-configured -iodo-,-unsaturated esters in good to excellent yield.
(Carboethoxymethylene)三苯基
磷1在N-
碘代琥珀
酰亚胺(NIS)和
二氧化锰的存在下与醇发生
碘化-氧化-Wittig级联反应。该反应构成一种立体选择性的一锅法工艺,用于制备Z型-
碘代-不饱和酯,产率良好到优秀。