Production of hydroxy arylophenones

Details Production of hydroxy arylophenones Production of hydroxy arylophenones

1982-01-20

1984-06-05

Reamer, James H.

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

Organic compounds

Oxygen containing

568322, 568306, C07C 4546

Patent

active

044530102

ABSTRACT:
Production of a hydroxy arylophenone by reacting an aromatic carboxylic acid Ar(--CO.sub.2 H).sub.p where Ar is an aromatic radical, (--CO.sub.2 H) is an aromatic carboxylic acid group, and p is 1 or 2 with an aromatic compound H--Ar'--OH where Ar' is an aromatic radical and --H and --OH are aromatically bound para to each other in a benzenoid ring, in the presence of an alkyl sulphonic acid, particularly methane sulphonic acid, to produce a hydroxy arylophenone of formula Ar(--CO--Ar'--OH).sub.p where the carbonyl and hydroxyl groups are para to each other in the hydroxyl-containing benzenoid ring of Ar'. The production of the hydroxy arylophenone proceeds through the intermediate ester (H--Ar'--O--CO--).sub.p Ar and the production of the hydroxy arylophenone starting from the ester is also claimed.

REFERENCES:
patent: 2483566 (1949-10-01), Thompson
patent: 3073866 (1963-01-01), Stanley
Hocking, J. Chem. Tech. Biotechnol., vol. 30, pp. 626-641 (1980).
Effenberger et al., Angew. Chemie. Int. Edit., vol. 12, pp. 775-776 (1973).
Premasoger et al., J. Org. Chem., vol. 46, pp. 2974-2976 (1981).

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