hydrogen phosphate, and subsequent removal of one of two p-nitrophenoxy groups in the resulting alkyl bis(p-nitrophenyl) phosphate gave alkyl p-nitrophenyl phosphates. These were then converted to mixed dialkyl hydrogen phosphates in good overall yields by repetition of the above two-step procedure. The stepwise removal of two p-nitrophenoxy groups was successfully accomplished by the use of tetrabutylammonium
2-烷氧基
苯并恶唑与双(对
硝基苯基)
磷酸氢盐反应,随后除去所得双(对
硝基苯基)
磷酸烷基酯中的两个对
硝基苯氧基之一,得到烷基对
硝基苯基
磷酸酯。然后通过重复上述两步程序将它们以良好的总产率转化为混合的
磷酸氢二烷基酯。通过在非常温和的条件下使用四丁基
乙酸铵成功地逐步去除两个对
硝基苯氧基。