An efficient method for the synthesis of simple and sterically hindered carboxamides from various carboxylic acids and amines using tetrabenzylpyrophosphate (TBPP) as a coupling agent in the presence of 4-(dimethylamino)pyridine (DMAP) is described. The reaction is operationally straightforward, proceeds under mild conditions at room temperature, and affords the desired product in high yield.
描述了一种高效的方法,利用四苄基
焦磷酸酯(
TBPP)作为耦合剂,在4-(
二甲氨基)
吡啶(
DMAP)存在下,从各种
羧酸和胺合成简单及立体阻碍的羧酰胺。该反应操作简便,在室温下温和条件下进行,并以高产率获得所需产物。