Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By condensation of entire molecules or entire hydrocarbyl...
Patent
1995-12-14
1998-09-08
Langel, Wayne
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By condensation of entire molecules or entire hydrocarbyl...
585468, C07C 268
Patent
active
058046909
ABSTRACT:
A mono-methylation process for the production of methylated aromatics by reacting aromatics with dimethylcarbonate in the presence of a metal oxide or binary metal oxide catalyst. A process for preparing toluene from benzene by reacting with dimethylcarbonate and a process for preparing xylene from toluene by reacting with dimethylcarbonate are described.
REFERENCES:
patent: 4259537 (1981-03-01), Chu
patent: 4894471 (1990-01-01), Angeletti et al.
patent: 5157199 (1992-10-01), Soled et al.
patent: 5294744 (1994-03-01), Godek et al.
patent: 5345026 (1994-09-01), Chang et al.
patent: 5382731 (1995-01-01), Chang et al.
patent: 5396011 (1995-03-01), Kuhn
patent: 5401478 (1995-03-01), Chang et al.
patent: 5422327 (1995-06-01), Soled et al.
patent: 5430173 (1995-07-01), Pfirmann et al.
patent: 5449847 (1995-09-01), Chang et al.
patent: 5453556 (1995-09-01), Chang et al.
patent: 5516954 (1996-05-01), Chang et al.
C.-Y. Hsu, "A Highly Active Sufated Superacid Catalyst for n-Butane Isomerization: a Solid Oxide Containing Iron, Manganese and Zirconium", Jul. 8, 1992, pp. 1645-1646.
Makoto Hino and Kazushi Arata, Synthesis of Solid Superacid of Tungsten Oxide supported on Zirconia and its Catalytic Action for Reacrtions of Butane and Pentane, Feb. 16, 19*88, pp. 1259-1260.
Kazushi Arata and Makoto Hino, Synthesis of Solid Superacid of Tungsten Oxide Supported on Zirconia and its Catalytic Action, Proceedings 9th International Congress and Catalysis, vol. 4, 1988, pp. 1727-1735.
Enrique Iglesia, Stuart L. Soled and George M. Kramer, "Isomerization of Alkanes on Suffated Zirconia: Promotion by Pt and by Adamantyl Hydride Transfer Species", Journal of Catalysis, vol. 144, No. 1, pp. 238-253.
Maurizo Selva, Carlos Alberto Marques and Pietro Tundo, "Selective Mono-methylation of Arylacetonitriles and Methyl Arylacetates by Dimethyl Carbonate", J.Chem,Soc. Perkin Trans. 1 1994, pp. 1323-1327.
Chemical Abstract 102:26782f.
P. R. Hari Prasad Rao, Pascale Massiani and Denise Bartomeuf, "Selectivity to N-mono or dialkylation in the reaction of aniline with dimethyl carbonate on faujasite, EMT and beta alkaline zeolites", Catalysis Letters 31 (1995), pp. 115-119.
Chang Clarence D.
Huang Tracy J.
Boozer Tanaga A.
Cier Ronald J.
Langel Wayne
Loo Blossom E.
Mobil Oil Corporation
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