Search results for "o-Phenylenediamine"

showing 4 items of 4 documents

CCDC 607312: Experimental Crystal Structure Determination

2006

Related Article: V.Tabernero, M.C.Maestre, G.Jimenez, T.Cuenca, C.R.de Arellano|2006|Organometallics|25|1723|doi:10.1021/om051088y

(NN'-Di-neopentyl-o-phenylenediamine-NN')-(eta^5^-pentamethyl-cyclopentadienyl)-titanium methyl-tris(pentafluorophenyl)borateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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ChemInform Abstract: 1-Alkyl- and Azeto[1,2-a][1,5]benzodiazepine Derivatives in the Reaction of o-Phenylenediamine with 3-(Dimethylamino)propiopheno…

2001

The reaction of o-phenylenediamine (4) with one, two or three equivalents of p-substituted 3-dimethylaminopropiophenone hydrochlorides 5a−e was studied. 4-Aryl-2,3-dihydro-1H-1,5-benzodiazepine derivatives 6a−e were obtained in good yields, along with the 1:2-adducts 7c−e and the unexpected 1:3-adducts rac-8c−e. The type of adduct formed is determined by the molar ratio of the reactants 4 and 5 and by the nature of the substituent in the para position of the propiophenone 5.

chemistry.chemical_classificationBenzodiazepinePropiophenonesmedicine.drug_classSubstituentGeneral MedicineMedicinal chemistryAdductPara positionchemistry.chemical_compoundchemistryPropiophenoneo-PhenylenediaminemedicineOrganic chemistryAlkylChemInform
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1-Alkyl- and azeto[1,2-a][1,5]benzodiazepine derivatives in the reaction of o-phenylenediamine with 3-(dimethylamino)propiophenones

2000

The reaction of o-phenylenediamine (4) with one, two or three equivalents of p-substituted 3-dimethylaminopropiophenone hydrochlorides 5a−e was studied. 4-Aryl-2,3-dihydro-1H-1,5-benzodiazepine derivatives 6a−e were obtained in good yields, along with the 1:2-adducts 7c−e and the unexpected 1:3-adducts rac-8c−e. The type of adduct formed is determined by the molar ratio of the reactants 4 and 5 and by the nature of the substituent in the para position of the propiophenone 5.

chemistry.chemical_classificationPropiophenonesBenzodiazepineChemistrymedicine.drug_classOrganic ChemistrySubstituentMedicinal chemistryAdductPara positionchemistry.chemical_compoundPropiophenoneo-PhenylenediaminemedicinePhysical and Theoretical ChemistryAlkyl
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Interaction of mushroom tyrosinase with aromatic amines, o-diamines and o-aminophenols

2004

3-Amino-L-tyrosine was found to be a substrate of mushroom tyrosinase, contrary to what had previously been reported in the literature. A series of amino derivatives of benzoic acid were tested as substrates and inhibitors of the enzyme. 3-Amino-4-hydroxybenzoic acid, 4-amino-3-hydroxybenzoic acid and 3,4-diaminobenzoic acid were oxidized by this enzyme, as previously reported for Neurospora crassa tyrosinase, but 4-aminobenzoic acid and 3-aminobenzoic acid were not. Interestingly, 3-amino-4-hydroxybenzoic acid was oxidized five times faster than 4-amino-3-hydroxybenzoic acid, confirming the importance of proton transfer from the hydroxyl group at C-4 position. All compounds inhibited the m…

proton transferStereochemistryTyrosinaseBiophysicsPlasma protein bindingDiaminestyrosinaseAminophenolsBiochemistryCatalysisNeurospora crassachemistry.chemical_compoundo-aminophenolSide chainAminesMolecular BiologyBenzoic acidchemistry.chemical_classificationbiologyMonophenol Monooxygenaseo-phenylenediamineSubstrate (chemistry)biology.organism_classificationOxygenEnzymechemistryElectrophoresis Polyacrylamide GelAgaricalesProtein BindingBiochimica et Biophysica Acta (BBA) - General Subjects
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