Synthesis of phosphonomethylated acid chlorides, alcohols, and aldehydes of the furan series
作者:L. M. Pevzner
DOI:10.1134/s107036321108007x
日期:2011.8
group remains untouched in all these transformations. A series of phosphorylated acid chlorides, alcohols, and aldehydes including all six versions of mutual location of phosphorus-containing substituent and another functional group in the furan ring was synthesized. It is established that 2,3- and 3,2-(diethoxyphosphorylmethyl)(chlorocarbonyl)furans in the course of vacuum distillation undergo cyclization
呋喃羧酸的二乙氧基磷酰基甲基衍生物在DMF的存在下与亚硫酰氯反应生成相应的酰氯。在DMF-二恶烷介质中,用硼氢化钠还原合成的化合物,得到羟甲基化合物。通过在二氯甲烷中的三氧化铬-吡啶配合物将获得的磷酸化醇氧化为醛。在所有这些转化中,二乙氧基磷酰基甲基保持不变。合成了一系列磷酸化的酰氯,醇和醛,包括含磷取代基和呋喃环中另一个官能团的相互定位的所有六个形式。已经确定,在真空蒸馏过程中2,3-和3,2-(二乙氧基磷酰基甲基)(氯羰基)呋喃环化成4,5(2,3-呋喃)-和4,