Process for formylating xylene mixture

Details Process for formylating xylene mixture Process for formylating xylene mixture

1981-02-11

1983-01-11

Helfin, Bernard

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

Organic compounds

Oxygen containing

C07C 4549

Patent

active

043683363

ABSTRACT:
A xylene mixture containing at least one of m-xylene and o-xylene is formylated by carbon monoxide in the presence of hydrogen fluoride and boron trifluoride at a molar ratio of boron trifluoride to sum total of m-xylene and o-xylene in the xylene mixture of not more than 1.5 to selectively and correspondingly produce at least one of 2,4-dimethylbenzaldehyde and 3,4-dimethylbenzaldehyde.

REFERENCES:
patent: 2485237 (1949-10-01), Gresham et al.

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