A practical synthesis of 2-(N-substituted)-aminobenzimidazoles utilizing CuCl-promoted intramolecular cyclization of N-(2-aminoaryl)thioureas
作者:Xiao-jun Wang、Li Zhang、Yibo Xu、Dhileepkumar Krishnamurthy、Chris H. Senanayake
DOI:10.1016/j.tetlet.2004.07.042
日期:2004.9
A practical protocol for synthesis of 2-(N-substituted)-aminobenzimidazoles was developed. N-(2-Aminoaryl)thioureas undergo a CuCl-promoted intramolecular cyclization to give the corresponding 2-(N-substituted amino)benzimidazoles in good to excellent isolated yields.