32406-09-0Relevant articles and documents
Process For Production of 5-Phenylisophthalic Acid
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Page/Page column 5, (2009/07/03)
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
Nesterova,Pimerzin,Krasnykh
, p. 1884 - 1890 (2007/10/03)
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.
Catalysts for the hydroalkylation of benzene, toluene and xylenes
Kamiyama,Enomoto,Inoue
, p. 15 - 24 (2007/10/02)
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