32406-09-0

Basic information

• Product Name: Benzene, 1-cyclohexyl-3,5-dimethyl-
• CAS NO: 32406-09-0
• Molecular Formula: C14H20
• Molecular Weight: 188.313
• Mol File: 32406-09-0.mol

Chemical Properties

• CAS DataBase Reference: Benzene, 1-cyclohexyl-3,5-dimethyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1-cyclohexyl-3,5-dimethyl-(32406-09-0)
• EPA Substance Registry System: Benzene, 1-cyclohexyl-3,5-dimethyl-(32406-09-0)

Safety Data

• Hazardous Substances Data: 32406-09-0(Hazardous Substances Data)

Upstream product

• 107517-89-5 1-cyclohex-1-en-1-yl-3,5-dimethylbenzene 
• 953-91-3 cyclohexyl tosylate 
• 108-38-3 m-xylene 
• 110-83-8 cyclohexene 
• 108-93-0 cyclohexanol 
• 71-43-2 benzene 
• 7446-70-0 aluminium trichloride 
• 542-18-7 cyclohexyl chloride 
• 98-95-3 nitrobenzene 
• 108-85-0 1-bromocyclohexane 
• 4501-51-3 1,3-dimethyl-4-cyclohexylbenzene 

Downstream Products

• 17057-88-4 3,5-dimethylbiphenyl 
• 42014-61-9 4-Cyclohexyl-2,6-dimethylanilin 
• 4501-51-3 1,3-dimethyl-4-cyclohexylbenzene 
• 54810-83-2 4,4'-Diphenyl-2,6,2',6'-tetramethyl-azobenzol 
• 54810-87-6 3,5-dimethyl-4-nitro(1,1'-biphenyl) 
• 54810-82-1 3,5-dimethyl-[1,1'-biphenyl]-4-amine 
• 54810-84-3 p-Benzochinon-4(4'-phenyl-2'.6'-dimethylanil) 
• 42014-72-2 4-(4-Cyclohexyl-2,6-dimethyl-phenylimino)-2,6-dimethyl-cyclohexa-2,5-dienone 

Relevant articles and documents

Process For Production of 5-Phenylisophthalic Acid

The present invention provides an industrially advantageous process for producing 5-phenylisophthalic acid, which process attains excellent selectivity and yield and also realizes recovery and reuse of a catalyst. The process for producing 5-phenylisophthalic acid represented by formula (1) is characterized in that the process includes the following steps (A) to (C): (A) reacting m-xylene with cyclohexene in the presence of hydrogen fluoride and boron trifluoride, to thereby produce 1-cyclohexyl-3,5-dimethylbenzene;(B) dehydrogenating the 1-cyclohexyl-3,5-dimethylbenzene produced in step (A) in the presence of a dehydrogenation catalyst, to thereby produce 3,5-dimethylbiphenyl; and(C) dissolving the 3,5-dimethylbiphenyl produced in step (B) in a solvent and oxidizing the 3,5-dimethylbiphenyl in the co-presence of an oxidation catalyst, to thereby produce 5-phenylisophthalic acid.

PROCESS FOR PRODUCTION OF 5-PHENYLISOPHTHALIC ACID

The present invention provides an industrially advantageous process for producing 5-phenylisophthalic acid, which process attains excellent selectivity and yield and also realizes recovery and reuse of a catalyst. The process for producing 5-phenylisophthalic acid represented by formula (1) is characterized in that the process includes the following steps (A) to (C): (A) reacting m-xylene with cyclohexene in the presence of hydrogen fluoride and boron trifluoride, to thereby produce 1-cyclohexyl-3,5-dimethylbenzene; (B) dehydrogenating the 1-cyclohexyl-3,5-dimethylbenzene produced in step (A) in the presence of a dehydrogenation catalyst, to thereby produce 3,5-dimethylbiphenyl; and (C) dissolving the 3,5-dimethylbiphenyl produced in step (B) in a solvent and oxidizing the 3,5-dimethylbiphenyl in the co-presence of an oxidation catalyst, to thereby produce 5-phenylisophthalic acid.

Contributions of enthalpy and entropy factors to isomerization equilibrium of isopropyl- and cyclohexylbenzenes

Experimental and theoretical data on the liquid-phase equilibrium of the positional isomerization of isopropyl- and cyclohexylbenzenes are analyzed in detail. Contributions of the enthalpy and entropy factors to the equilibrium constants of the ortho-meta and para-meta transformations are estimated.

Liquid-Phase Catalytic Oxidation of 2,4-Dimethylbiphenyl

2,4-Dimethylbiphenyl synthesized by alkylalion of m-xylene with cyclohexanol and subsequent dehydrogenation was oxidized catalytically in the liquid phase to 2,4-biphenyldicarboxylic acid. The effects of temperature, the catalyst, and initial concentrations of reactants on the rate and efficiency of the process were studied.