Condensed imidazo-1,2,4-azines. 15. Reaction of 1,2-diaminobenzimidazole with 5-phenyl-2,3-dihydrofuran-2,3-dione

Journal Article · Thu Oct 01 04:00:00 EDT 1987 · Chem. Heterocycl. Compd. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF00546744· OSTI ID:7169334

Kruglenko, V P; Gnidets, V P; Klyuev, N A; Povstyanoi, M V

The reaction of 1,2-diaminobenzimidazole with 5-phenyl-2,3-dihydrofuran-2,3-dione in acetic acid gave a mixture of 2-benzoylmethyl-1,2,4-triazino (2,3-..cap alpha..)-benzimidazol-4H-3-one and 3-benzoylmethyl-1,2,4-triazino(2,3-..cap alpha..)benzimidazol-1H-2-one, the intramolecular cyclization of which gave isomeric 2-phenylfuro-(5,4-e)- and 2-phenylfuro(4,5-e)-1,2,4-triazino(2,3-..cap alpha..)benzimidazoles. Only the corresponding furo(4,5-e)-1,2,4-triazino(2,3-..cap alpha..)benzimidazole was isolated when the reaction was carried out in sulfuric acid. The IR spectra of KBr pellets of the compounds were recorded with a UR-20 spectrometer. The electronic absorption spectra of solutions in dioxane were obtained with a Specord UV-vis spectrophotometer. The mass spectra were recorded with a Varian MAT-311a spectrometer. The quantum-chemical calculations were made by the Pariser-Parr-Pople (PPP) method with the standard parametrization.

• Research Organization: Kherson Industrial Institute (USSR)
• OSTI ID: 7169334
• Journal Information: Chem. Heterocycl. Compd. (Engl. Transl.); (United States), Journal Name: Chem. Heterocycl. Compd. (Engl. Transl.); (United States) Vol. 23:4; ISSN CHCCA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
640302 -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
640304 -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTRA
ATOMIC MODELS
AZINES
AZOLES
BENZIMIDAZOLES
CHARGED PARTICLES
CHEMICAL REACTIONS
COLLISIONS
DISSOCIATION
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
HETEROCYCLIC COMPOUNDS
IMIDAZOLES
INFRARED SPECTRA
IONIZATION
IONS
ISOMERIZATION
ISOMERS
KETONES
MASS SPECTRA
MATHEMATICAL MODELS
MECHANICS
MOLECULAR IONS
MOLECULAR MODELS
MOLECULE COLLISIONS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
QUANTUM MECHANICS
SPECTRA
STRUCTURAL CHEMICAL ANALYSIS