An efficient strategy for N-alkylation of benzimidazoles/imidazoles in SDS-aqueous basic medium and N-alkylation induced ring opening of benzimidazoles
作者:Ankita Chakraborty、Sudipto Debnath、Tanmoy Ghosh、Dilip K. Maiti、Swapan Majumdar
DOI:10.1016/j.tet.2018.08.029
日期:2018.10
alkyl halides reaction proceeds at ambient temperature whereas in the cases of less reactive alkyl halides require 55–60 °C to complete alkylation process. N-alkylation induced ring opening of the heterocyclicring in benzimidazole derivatives to multifunctional aromaticcompounds were noticed at 60 °C when more than two equivalents of alkyl halide was used.