N-Methylthiomethylation of benzimidazoles with DMSO and their chemoselective oxidation to sulfoxides with NaBiO3
作者:Chhanda Mukhopadhyay、Pradip Kumar Tapaswi、Swarbhanu Sarkar、Michael G. B. Drew
DOI:10.3998/ark.5550190.0012.929
日期:——
for the N-methylthiomethylation of benzimidazoles has been developed employing DMSO as a solvent and as a reagent. This methodology has been applied for the synthesis of diverse N-methylthiomethyl derivatives of benzimidazoles. The products can be chemoselectively oxidized to the corresponding sulfoxides with NaBiO3 in acetic acid. Both the N-methylthiomethyl derivatives of benzimidazoles and their