Process for the preparation of aromatic carboxylic acid chloride

Details Process for the preparation of aromatic carboxylic acid chloride Process for the preparation of aromatic carboxylic acid chloride

1986-09-22

1988-08-16

Killos, Paul J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260544P, C07C 6300

Patent

active

047643102

ABSTRACT:
Aromatic carboxylic acid chlorides can be prepared from alkyl esters of aromatic carboxylic acids by reaction of the alkyl esters with phosgene at 100.degree.-300.degree. C. in the presence of organophosphorus compounds. This reaction can also be carried out in the presence of an inert solvent.

REFERENCES:
patent: 2865925 (1958-12-01), Toland
patent: 3346594 (1967-10-01), Merijan et al.
patent: 3562326 (1976-06-01), Semler et al.
patent: 4308216 (1981-12-01), Freitag et al.
patent: 4322373 (1982-03-01), Freitag et al.
Patai, Saul, The Chemistry of Acyl Halides, (1972), Interscience, Publ., p. 45.
Chemical Abstracts, Band 54, nr. 6, 25. Marz 1960, Spalte 5425, e-f, Columbus, Ohio, U.S.: L. Horner et al.: "Phosphorus Organic Compounds. XVII. Reaction with Triphenylphosphine dihalides; the Reaction Path of Halogen Introduction or Dehydration by Phosphorus Halides", & Ann. 62, 26-34, (1959).

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