An optimized and scalable synthesis of propylphosphonic anhydride for general use
摘要:
Propylphosphonic anhydride (T3P (R)) is an effective coupling and dehydrating agent, which has been used for a large number of chemical transformations. An efficient and versatile synthetic method is described to synthesize propylphosphonic anhydride (T3P (R)) in pure form, in an overall yield of 51% in four steps from commercially available diethyl phosphonate. (C) 2015 Elsevier Ltd. All rights reserved.
Copper-catalyzed efficient direct amidation of 2-methylquinolines with amines
作者:Hao Xie、Yunfeng Liao、Shuqing Chen、Ya Chen、Guo-Jun Deng
DOI:10.1039/c5ob00915d
日期:——
A copper catalyzed efficient procedure for quinoline-2-carboxamides formation via direct amidation of 2-methylquinolines under oxygen is described.
一种铜催化的高效程序,通过在氧气下直接对2-甲基喹啉进行酰胺化,形成喹啉-2-甲酰胺。
A convenient synthesis of <i>N</i>-(hetero)arylamides by the oxidative coupling of methylheteroarenes with amines
作者:Anjali Jaiswal、Preeti、Krishna Nand Singh
DOI:10.1039/d2ob01106a
日期:——
An oxidative amidation of 2-methylpyridines/2-methylbenzimidazole with amines using copper acetate and elemental sulfur in DMSO to afford various N-(hetero)arylamides has been accomplished. Mechanistic studies reveal the intermediacy of N-(pyridin-2-ylmethyl)aniline and confirm the role of DMSO as the oxygen source.
An optimized and scalable synthesis of propylphosphonic anhydride for general use
作者:Hana Pizova、Pavel Bobal
DOI:10.1016/j.tetlet.2015.02.126
日期:2015.4
Propylphosphonic anhydride (T3P (R)) is an effective coupling and dehydrating agent, which has been used for a large number of chemical transformations. An efficient and versatile synthetic method is described to synthesize propylphosphonic anhydride (T3P (R)) in pure form, in an overall yield of 51% in four steps from commercially available diethyl phosphonate. (C) 2015 Elsevier Ltd. All rights reserved.