Polymer-Assisted Parallel Solution Phase Synthesis of Substituted Benzimidazoles
作者:Young K. Yun、John A. Porco Jr.、Jeff Labadie
DOI:10.1055/s-2002-25366
日期:——
A small library of benzimidazoles was prepared using polymer-bound reagents and scavengers. Polymer-assisted reaction of diphenyl diamines with carboxylic acids yielded o-amido-diphenylamines in the presence ofPolystyrene-Carbodiimide (PS-Carbodiimide) using 1-hydroxy-7-azabenzotriazole (HOAt) as additive. Excess HOAt was scavenged post-reaction using Polystyrene-Trisamine (PS-Trisamine) resin. Treatment