Halogenation of Substituted Benzimidazoles. Nitration of the Resulting Halobenzimidazoles

…, EM Essassi, R Danion-Bougot

文献索引：El Kihel, Abdellatif; Benchidmi, Mohamed; Essassi, El Mokhtar; Danion-Bougot, Renee Synthetic Communications, 1999 , vol. 29, # 3 p. 387 - 397

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被引用次数: 12

摘要

Abdellatif El Kihela.b, Mohamed Benchidmib, El Mokhtar Essassib and Renee Danion-BougotC* ... Abstract : Halogenation of 2-alkyl-5(6)-chloro(or methy1)benzimidazoles occurs in 6(5) position and subsequent nitration affords the corresponding 7(4)- nitrobenzimidazoles. ... We have recently reported the nitration of substituted benzimidazolesl . With 5 (or 6) chloro or methyl derivatives, substitution occured at position 6 (or 5 ) ...