Synthesis and Structural Characterization of New Benzimidazole Compounds Derived from Electron-Rich Olefins Bearing 1,4- Bisbenzimidazole with CS2, PhNCS, and Chalcogens

Year 2018, Volume: 5 Issue: 3, 1037 - 1042, 01.09.2018

Ülkü Yılmaz , Hasan Küçükbay

https://doi.org/10.18596/jotcsa.447056

Cited By: 5

Abstract

In
this work, 1,4-bis(3-isopropylbenzimidazolidine-2-ylidene-1-yl)butane (1) and
1,4-bis(3,5(6)-dimethylbenzimidazolidine-2-ylidene-1-yl)butane (2) were reacted with oxygen, sulfur,
selenium, tellurium, phenyl isothiocyanate and carbon disulfur. New
zwitterionic compounds (9-12) and cyclic urea derivatives of
benzimidazole as one (3), thione (4,6),
selenone (5,7), tellurone (8) were
synthesised from electron-rich olefins. The chemical structure of novel
benzimidazole compounds were determined by ¹H NMR, ¹³C
NMR, FTIR spectroscopic techniques and elemental analysis.

Keywords

Bisbenzimidazole, electron rich olefin, strong nucleophile, urea derivative, zwitterion.

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