Aerobic Oxidation of p-Toluic Acid to Terephthalic Acid over T( p-Cl)PPMnCl/Co(OAc)2 Under Moderate Conditions.

Authors :: Xiao, Y.
Luo, W. P.
Zhang, X. Y.
Guo, C. C.
Liu, Q.
Jiang, G. F.
Li, Q. H.
Source :: Catalysis Letters; Jan2010, Vol. 134 Issue 1/2, p155-161, 7p, 2 Diagrams, 6 Charts, 4 Graphs
Publication Year :: 2010
Abstract: The aerobic oxidation of p-toluic acid to terephthalic acid over tetra( p-chlorophenylporphinato)manganese (T( p-Cl)PPMnCl)/cobalt acetate was reported for the first time. The co-catalysis of T( p-Cl)PPMnCl/Co(OAc)<subscript>2</subscript> was also studied. The studies indicated that the PTA oxidation was influenced by the catalyst composition, catalyst concentrations and reaction conditions. A preliminary mechanism of this co-catalyzed oxidation reaction was proposed based on experimental observations. The aerobic oxidation of PTA to TPA over T( p-Cl)PPMnCl/Co(OAc)<subscript>2</subscript> was reported for the first time, and the co-catalysis of T( p-Cl)PPMnCl/Co(OAc)<subscript>2</subscript> for aerobic oxidation of PTA to TPA was also studied. A preliminary mechanism for the PTA oxidation over T( p-Cl)PPMnCl/Co(OAc)<subscript>2</subscript> was proposed based on the experiment results.[Figure not available: see fulltext.] [ABSTRACT FROM AUTHOR]

Subjects :: TOLUIC acid
TEREPHTHALIC acid
OXIDATION
PHTHALIC acid
CATALYSTS
COBALT

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