Propylphosphonic Anhydride (T3P®)-Mediated One-Pot Rearrangement of Carboxylic Acids to Carbamates
作者:John Augustine、Agnes Bombrun、Ashis Mandal、Padma Alagarsamy、Rajendra Atta、Panneer Selvam
DOI:10.1055/s-0030-1259964
日期:2011.5
A simple one-pot conversion of carboxylic acids to carbamates is achieved by propylphosphonic anhydride (T3P®) in combination with azidotrimethylsilane and an alcohol via the Curtius rearrangement. Besides diverse primary to tertiary alcohols, the reaction tolerated a wide scope of aromatic, heterocyclic, and aliphatic carboxylic acids which underwent rearrangement in excellent yields. propylphosphonic
的羧酸的简单的一锅转变成氨基甲酸酯通过丙基膦酸酐(T3P实现®与azidotrimethylsilane组合),并通过Curtius重排的醇。除了多样化的伯醇至叔醇外,该反应还耐受各种芳族,杂环和脂肪族羧酸,这些羧酸经过重排后具有极高的收率。 丙基膦酸酐-Curtius重排-氨基甲酸酯-肽偶联剂-叠氮基三甲基硅烷