Abstract
The synthesis of 1-(4-nitrobenzyl)-2-chloromethyl benzimidazole, which undergoes a nucleophilic substitution with pyridine in the absence of additional base, is reported. The key steps are the reaction of 1,2-phenylenediamine to give exclusively the mono-substituted product and the avoidance of minor by-products via the use of glycolic acid for the cyclisation step. The X-ray structures of 1-(4-nitrobenzyl)-2-chloromethyl benzimidazolium chloride and 1-[1-(4-nitrobenzyl)benzimidazol-2-ylmethyl]pyridinium chloride are presented.
Original language | English |
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Pages (from-to) | 4723-4726 |
Number of pages | 4 |
Journal | TETRAHEDRON LETTERS |
Volume | 51 |
Issue number | 36 |
DOIs | |
Publication status | Published - 8 Sept 2010 |
Keywords
- Antagonist
- Anti-viral
- Benzimidazole
- Chelators synthesis