Efficient access to polysubstituted amidines, benzimidazoles and pyrimidines from amides
摘要:
Polysubstituted amidines, benzimidazoles and pyrimidines were synthesized via the electrophilic activation of amides With trifluoromethanesulfonic anhydride and 2-chloropyridine The one-pot protocol is concise and efficient and the Substrates are readily available (C) 2009 Elsevier Ltd All rights reserved