Synthesis of Bis(2,2-benzimidazolyl)dibenzo-18-crown-6 |
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Authors: | N Zh Saifullina E B Galieva A K Tashmukhamedova |
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Institution: | (1) M. Ulugbek National University of Uzbekistan, Tashkent, 700095, Uzbekistan |
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Abstract: | A method has been developed for the introduction of benzimidazole substituents into the dibenzo-18-crown-6 molecule by condensation
of its 4′,4″(5″)-diacetyl derivative with ortho-phenylenediamine. Increasing the length of the hydrocarbon chain of the acyl
substituent or replacing Ac by CSNH2 led to a decrease in the yield of the desired product. No product was formed when Ac was replaced by COOH or CN.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, 1388–1390, September, 2005. |
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Keywords: | acylation benzimidazoles dibenzo-18-crown-6 condensation with ortho-phenylenediamine |
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