14208-17-4Relevant academic research and scientific papers
Effect of substituents on spin density in benzimidazole nitronyl nitroxide radicals studied by electron spin resonance
Esat, Burak,Fidan, Ismail,Bahceci, Sumeyye,Yerli, Yusuf,Sari, Levent
scheme or table, p. 641 - 650 (2010/06/21)
Several novel benzimidazole-3-oxide-1-oxyl radicals with substituents at 5 and/or 6 position were synthesized. The ESR analysis of nitrogen hyperfine coupling constants (hfccs) revealed that substituents at 5 and 6-position affect the spin density to greater extent than substituents on the phenyl ring at 2-position. Density functional theory calculations of nitrogen hfccs were performed using several different Pople type basis sets, as well as double and triple zeta quality individual gauge for localized orbital (IGLO-II, IGLO-III) and electron paramagnetic resonance (EPR-II, EPR-II) basis sets. Experimental and theoretical hfccs are compared.
FORMATION OF 2H-BENZIMIDAZOLE-1,3-DIOXIDES BY REACTION OF BENZOFUROXANS WITH ALCOHOLS AND ALKYL HALIDES IN THE PRESENCE OF ACIDS
Samsonov, V. A.,Volodarskii, L. B.,Shamirzaeva, O. V.
, p. 460 - 464 (2007/10/02)
Reaction of benzofuroxan and 5-nitrobenzofuroxan with alcohols and alkyl halides in concentrated sulfuric or perchloric acid leads to the formation of 2H-benzimidazole-1,3-dioxides.
A NOTE ON THE OXIDATIVE CAPACITY OF BENZOFURAZAN OXIDE
Alexanian, V.,Haddadin, M.J.,Issidorides, C.H.,Nazer, M.Z.
, p. 391 - 398 (2007/10/02)
A method is described for the preparation of o-quinone dioximes from the reaction of benzofurazan oxide (or its congeners) with sodium dithionite, thiophenols, phenylhydroxylamine, and hydrazine derivatives.These, and other related reactions reported in t
