PREPARATION OF BENZIMIDAZOLE <i>N</i>-OXIDES BY A TWO-STEP CONTINUOUS FLOW PROCESS
DOI:
https://doi.org/10.1007/3534Keywords:
benzimidazoles, N-oxides, cyclization, flow chemistry, green chemistry, nucleophilic aromatic substitutionAbstract
A continuous flow process for the synthesis of nitrobenzimidazole N-oxides from 2,6-dinitrochlorobenzene and amines or amino acids is reported. The process, performed in a two-step sequence, is faster than previously reported batch processes and avoids some of the isolation and purification steps.
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Published
2016-12-22
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Original Papers