2913-43-1

Basic information

• Product Name: 2,5-Cyclohexadiene-1,4-dione, 2-hydroxy-3,5,6-trimethyl-
• CAS NO: 2913-43-1
• Molecular Formula: C9H10O3
• Molecular Weight: 166.177
• Mol File: 2913-43-1.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: 2,5-Cyclohexadiene-1,4-dione, 2-hydroxy-3,5,6-trimethyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 2,5-Cyclohexadiene-1,4-dione, 2-hydroxy-3,5,6-trimethyl-(2913-43-1)
• EPA Substance Registry System: 2,5-Cyclohexadiene-1,4-dione, 2-hydroxy-3,5,6-trimethyl-(2913-43-1)

Safety Data

• Hazardous Substances Data: 2913-43-1(Hazardous Substances Data)

Usage

Type of compound

Organic compound (specifically, a cyclic diketone)

Common uses

Production of industrial and agricultural products, antioxidant and preservative in food and cosmetic industries, production of vitamins and pharmaceutical products

Known hazards

Hazardous to human health and the environment, should be handled and disposed of with caution.

Upstream product

• 95-63-6 1,2,4-Trimethylbenzene 
• 2416-94-6 2,3,6-trimethylphenol 
• 34647-81-9 2,4-diamino-3,5,6-trimethyl-phenol; dihydrochloride 
• 935-92-2 2,3,5-Trimethyl-1,4-benzoquinone 
• 697-82-5 2,3,5-trimethylphenol 
• 700-13-0 Trimethylhydroquinone 
• 24891-97-2 amino-trimethyl-[1,4]benzoquinone 
• 18477-17-3 1,2,4-triacetoxy-3,5,6-trimethyl-benzene 

Downstream Products

• 34648-57-2 Oxalic acid bis-(2,4,5-trimethyl-3,6-dioxo-cyclohexa-1,4-dienyl) ester 
• 36692-46-3 5-Bromo-6,6-dihydroxy-2,3,5-trimethyl-cyclohex-2-ene-1,4-dione 
• 36692-45-2 5-Bromo-6-hydroxy-6-methoxy-2,3,5-trimethyl-cyclohex-2-ene-1,4-dione 
• 2913-47-5 methoxy-trimethyl-[1,4]benzoquinone 

Relevant articles and documents

Selective oxidation of pseudocumene and 2-methylnaphthalene with aqueous hydrogen peroxide catalyzed by γ-Keggin divanadium-substituted polyoxotungstate

The catalytic performance of a γ-Keggin divanadium-substituted phosphotungstate, (Bu4N)4[γ-PW10O38V2(μ-O)(μ-OH)], has been evaluated in the selective oxidation of 1,2,4-trimethylbenzene (pseudocumene, PC) and 2-methylnaphthalene with the green oxidant, 35% aqueous hydrogen peroxide. Under conditions of H2O2 deficiency ([PC]/[H2O2] = 17-22), PC oxidation proceeded with unusually high chemo- and regioselectivity, producing exclusively 2,4,5-trimethylphenol (2,4,5-TMP) and 2,3,5-TMP in a molar ratio of 7.3/1 and a yield of 73% based on the oxidant. Isomeric 2,3,6-trimethylphenol was found in trace amounts. Under conditions of H2O2 excess ([H2O2]/[PC] = 8), 2,3,5-trimethyl-1,4-benzoquinone (TMBQ, vitamin E key intermediate) formed with 41% selectivity at 41% substrate conversion. Atypical regioselectivity was also found in the oxidation of 2-methylnaphthalene which gave predominantly 6-methyl-1,4-naphthoquinone (6-MNQ) rather than isomeric 2-MNQ. The ratio between the isomers could be altered by varying the catalyst and oxidant amounts.

Effect of combination sequence of precursors on the structural and catalytic properties of Ti-SBA-15

The combination sequence of Ti and Si precursors (TTIP and TEOS) in the synthesis solution of Ti-incorporated SBA-15 mesoporous silica (shortly termed Ti-SBA-15) was found for the first time to be critical for the distribution of tetrahedrally (Td) coordinated Ti(iv) sites in the resultant Ti-SBA-15. It was found that TTIP pre-assembled with P123 in the synthesis solution for 3 h before the addition of TEOS gave Td-coordinated Ti(iv) sites predominately incorporated near the superficial regions of the framework and were highly accessible to the reactants in catalytic reactions. The Royal Society of Chemistry 2013.

Catalytic Oxidation of Phenols to p-Quinones with the Hydrogen Peroxide and Methyltrioxorhenium(VII) System

-