Two series of bis(α-aminophosphonates) were synthesized by one-pot three-component reactions using 4-phenylenediamine, an aldehyde (2 equiv) and a phosphite (2 equiv), or terephtalaldehyde, an amine (2 equiv), and a phosphite (2 equiv) together with propylphosphonic anhydride (T3P®) in both series as a coupling reagent. The bis(α-aminophosphonates) were obtained in moderate to excellent yields. The
Benzimidazolium dicationic ionic liquid as an efficient and reusable catalyst for the synthesis of α-aminophosphonates and bis (α-aminophosphonates) under solvent-free condition
Benzimidazolium based on dicationic acidic ionicliquid (AIL) is designed, synthesized, and successfully used as a catalyst for the one-potsynthesis of α-aminophosphonates derivatives. The application of this AIL is studied in a new one-pot method for the synthesis of α-aminophosphonates derivatives under solvent-free conditions. The advantages of this method are the reusability of catalyst, high conversion
图形摘要摘要 基于双阳离子酸性离子液体(AIL)的苯并咪唑鎓被设计、合成并成功用作一锅合成α-氨基膦酸酯衍生物的催化剂。在无溶剂条件下合成 α-氨基膦酸酯衍生物的新一锅法中研究了该 AIL 的应用。该方法的优点是催化剂可重复使用、转化率高、反应时间短、实验步骤简单。