Carbonylation via solid acid catalysis

Details Carbonylation via solid acid catalysis Carbonylation via solid acid catalysis

1996-03-01

1997-10-21

Dees, Jose G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

502214, 502232, 502263, 423306, 423 69, C07C 4549

Patent

active

056798679

ABSTRACT:
The present invention is directed to a process for the carbonylation of an arylene to an arylaldehyde (e.g., toluene to tolualdehyde) in the presence of a solid acid catalyst. The process for making tolualdehyde comprises carbonylating toluene in the presence of either carbon monoxide or a source of carbon monoxide and in contact with a solid acid catalyst. The reaction is carried out at a temperature ranging from -40.degree. to 200.degree. C., and at a pressure ranging from 20-4000 psig.

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patent: 4218403 (1980-08-01), Vanderpool
patent: 4554383 (1985-11-01), Knifton
"Formulation of Aromatic Compounds with CO in HSO.sub.3 F-SbF.sub.5 under Atmospheric Pressure", J. Org. Chem. 57 (1992) 2677-2680.
"Researachers vie for cheapest TPA route", Chemical Week, Oct. 13, 1976, pp. 67-68.
"Superacid-Catalyzed Formulation of Aromatics with Carbon Monoxide", J. Org. Chem., 50 (1985) 1483-1485.
Journal of Organometallic Chemistry, 194 (1980) 221-228.
"Make PTAL from CO and toluene", Hydrocarbon Processing, Nov. 1978, pp. 147-149.

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