Synthesis of N-alkoxy-substituted 2H-benzimidazoles |
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Authors: | Nurul H Ansari Björn CG Söderberg |
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Institution: | C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, WV 26506-6045, United States |
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Abstract: | Treatment of 2-nitro-N-(2-methyl-1-propen-1-yl)benzenamines with potassium tert-butoxide in tert-butanol followed by the addition of an electrophile affords N-alkoxy-2H-benzimidazoles. Electrophiles including methyl iodide, allylic bromides, propargylic bromides, benzyl bromide, and acetyl chloride gave good to excellent yields of product while 1-iodo- and 2-iodo-butane afforded very low yields. |
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Keywords: | Cyclization Benzimidazole Alkylation 2-Nitroanilines Enamine |
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