Transition-metal-free synthesis of benzimidazoles mediated by KOH/DMSO.

ORGANIC LETTERS(2014)

Cited 110|Views1
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Abstract
Benzimidazoles are prepared by intramolecular N-arylations of amidines mediated by potassium hydroxide in DMSO at 120 degrees C. In this manner, diversely substituted products have been obtained in moderate to very good yields.
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Key words
benzimidazoles,synthesis,transition-metal-free
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