A solid phase traceless synthesis of benzimidazoles with three combinatorial steps
作者:Jennifer M. Smith、Viktor Krchňák
DOI:10.1016/s0040-4039(99)01560-9
日期:1999.10
A three combinatorial step solid-phase traceless synthesis of benzimidazoles is reported. The aldehyde resin was reductively alkylated by amines, the resin bound secondary amines were reacted with o-fluoronitrobenzenes, and the resulting o-nitroanilines were reduced by tin chloride. The primary aniline was acylated by acid chlorides. Exposure to acetic acid at elevated temperature cleaved and cyclized