PS-IIDQ: a supported coupling reagent for efficient and general amide bond formation
作者:Eric Valeur、Mark Bradley
DOI:10.1016/j.tet.2007.06.019
日期:2007.9
Polystyrene-IIDQ, a polymer-supported coupling reagent, was synthesized in three steps from Merrifield resin in 86% overall conversion. This reagentefficiently coupled carboxylic acids to amines in good yields and high purities, required no pre-activation step, and was tolerant of the order of reagent addition. PS-IIDQ was observed to be more efficient than polymer-supported carbodiimides (PS-EDC and