Oxidation of substituted p-xylenes to substituted terephthalalde

Details Oxidation of substituted p-xylenes to substituted terephthalalde Oxidation of substituted p-xylenes to substituted terephthalalde

1977-03-21

1979-02-20

Helfin, Bernard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260600R, C07C 4502

Patent

active

041407229

ABSTRACT:
Substituted terephthalaldehydes are produced by the vapor phase oxidation of similarly substituted p-xylenes in the presence of a catalyst mixture of tungsten in the form of an oxide or silicotungstic acid, molybdenum in the form of an oxide and optionally bismuth in the form of an oxide.

REFERENCES:
patent: 3597485 (1971-08-01), Brill
patent: 3845137 (1974-10-01), Magder
patent: 4017547 (1977-04-01), Simmons et al.

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