4370-50-7

Basic information

• Product Name: 4,5-Dimethyl-o-benzoquinone
• Synonyms: 4,5-Dimethyl-o-benzoquinone
• CAS NO: 4370-50-7
• Molecular Formula: C₈H₈O₂
• Molecular Weight: 136.14792
• Mol File: 4370-50-7.mol
• Article Data: 7

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 4,5-Dimethyl-o-benzoquinone(CAS DataBase Reference)
• NIST Chemistry Reference: 4,5-Dimethyl-o-benzoquinone(4370-50-7)
• EPA Substance Registry System: 4,5-Dimethyl-o-benzoquinone(4370-50-7)

Safety Data

• Hazardous Substances Data: 4370-50-7(Hazardous Substances Data)

Upstream product

• 95-65-8 3,4-Dimethylphenol 
• 2785-74-2 4,5-dimethylbenzene-1,2-diol 
• 6623-41-2 2-amino-4,5-dimethylphenol 
• 7664-93-9 sulfuric acid 
• 7705-08-0 iron(III) chloride 
• 1128-57-0 1,2-dimethoxy-4,5-dimethylbenzene 
• 52806-46-9 1-bromo-4,5-dimethoxy-2-methylbenzene 

Downstream Products

• 15675-06-6 4,5-Dimethyl-1,2-methylendioxy-benzol 
• 6479-88-5 2,3-dimethylphenazine 
• 2785-74-2 4,5-dimethylbenzene-1,2-diol 
• 3938-15-6 3,6-dibromo-4,5-dimethyl-pyrocatechol 
• 3938-13-4 3-chloro-4,5-dimethylpyrocatechol 
• 106379-38-8 1,2,3-triacetoxy-4,5-dimethyl-benzene 
• 32139-82-5 (+/-)-8,9-dimethyl-(3at,7at)-3a,4,7,7a-tetrahydro-1H-4r,7c-etheno-indene-5,6-dione 
• 859066-22-1 4,5-dimethyl-3-phenylsulfanyl-pyrocatechol 
• 100518-64-7 1,2-diethynyl-4,5-dimethyl-cyclohexa-3,5-diene-1,2-diol 
• 79157-75-8 P-anilino-5,6-dimethyl-1,3,2-benzodioxaphosphole-2-spiro-1'-3'H-<2,1>benzoxaphosphole 
• 98954-47-3 4-Hydroxy-4-methoxy-5-oxo-1,2-dimethyl-4,5-dihydro-benzol 
• 60824-67-1 2,4-Dimethoxy-4,5-dimethyl-2,5-cyclohexadienon 
• 91970-69-3 2-Acetonyl-4,5-dimethyl-o-benzochinol 
• 19961-07-0 1,2-diethyl-4,5-dimethyl-benzene 

Relevant articles and documents

Inverse electron demand hetero-Diels-Alder reaction in preparing 1,4-benzodioxin from o-quinone and enamine

A process for synthesizing 1,4-benzodioxin, through oxidation of a phenol to an o-quinone followed by treatment with an enamine, has been developed. Adduct stereochemistry is found to be retained via this one-pot reaction. The method uses hypervalent iodine reagent under mild conditions and is compatible with a wide scope of phenols and enamines.

Synthesis of (±)-brazilin using IBX

(Chemical Equation Presented) A short synthesis of (±)-brazilin is reported. This synthesis uses several interesting and underutilized transformations including a regioselective dirhodium-catalyzed aryl C-H insertion, a regioselective IBX phenol → o-quinone oxidation, a tautomerization of an o-quinone to a p-quinone methide, and an intramolecular aryl cyclization with a p-quinone methide.

Process for dyeing keratinous fibres with a hydroxyindole in combination with a quinone derivative; and novel 1,4-benzoquinones

Process for dyeing keratinous fibres, comprising the step of applying to these fibres at least one composition A containing, in a medium appropriate for dyeing, at least one mono- or di-hydroxyindole the application of the composition A being preceded or followed by the application of a composition B containing, in a medium appropriate for dyeing, at least one quinone derivative chosen from ortho- or para-benzoquinones, monoimines or diimines of ortho- or para-benzoquinones, 1,2- or 1,4-naphthoquinones, sulphonimides of ortho- or para-benzoquinones, α, ω-alkylene-bis-1,4-benzoquinones, or 1,2- or 1,4-naphthoquinone-monoimines or -diimines; the mono- or di-hydroxyindoles and the quinone derivatives being chosen such that the oxidation-reduction potential difference ΔE between the oxidation-reduction potential Ei of the mono- or di-hydroxyindoles, determined at pH 7 in a phosphate medium on a vitreous carbon electrode by voltametry, and the oxidation-reduction potential Eq of the quinone derivative determined at pH 7 in a phosphate medium by polarography on a mercury electrode and relative to a saturated calomel electrode is such that