Preparation of aryl esters by decomposing an aryl thallium carbo

Details Preparation of aryl esters by decomposing an aryl thallium carbo Preparation of aryl esters by decomposing an aryl thallium carbo

1982-12-20

1984-12-25

Chan, Nicky

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

Organic compounds

Carboxylic acid esters

2604105, 546268, 546281, 546301, 546302, 549 66, 549466, 549470, 549473, 549484, 560 1, 560 22, 560 61, 560 62, 560108, 560109, 560121, 560122, 560123, 560124, 560138, 560139, 560141, C07C 6700

Patent

active

044905521

ABSTRACT:
A novel process for the preparation of aryl esters of organic carboxylic acids in high isomer purity by decomposing a compound of the formula ##STR1## wherein Ar is an aryl radical, X is an acyloxy of an organic carboxylic acid and Y is selected from the group consisting of an acyloxy of an organic carboxylic acid and an anion of a strong organic and mineral acid in an aqueous media in the presence of a palladium salt or in the form of a two-phase reaction, wherein the aryl thallium salt is dissolved in water and the catalytic palladium salt is dissolved in a water-immiscible organic solvent and the reaction takes place with mixing.

REFERENCES:
patent: 4182915 (1980-01-01), Harvey
Kwok et al., J. Org. Chem., 44, 2309 (1979).
Taylor et al., JACS, 92, 2175 (1970).
Taylor et al., JACS, 93, 4845 (1971).

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