Process for dimerization, arylation and trifluoromethylation of

Details Process for dimerization, arylation and trifluoromethylation of Process for dimerization, arylation and trifluoromethylation of

1975-02-26

1979-11-13

Daus, Donald G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549 43, 549 49, 549 59, 549 29, 548152, 26034321, 2603463, 2603467, 260414, 26034791, 260430, 260465H, 260465R, 26034622, 26034344, 560 76, 546140, 546167, 546260, 548328, 2041571R, 204162R, 548202, 549 83, 585425, 585427, C07D40104

Patent

active

041744470

ABSTRACT:
A decarboxylation process for coupling aromatic compounds wherein cyclic hydrocarbons and heterocyclic compounds having at least one labile ring hydrogen are reacted with the mono silver salts of aromatic carboxylic acids, or mono silver salts of unsaturated compounds such as .alpha.,.beta.-ethylenically unsaturated acid compounds, or silver trifluoroacetate, or the mono silver salts are reacted with themselves, by heating to temperatures of 100.degree. to 500.degree. C. at pressures of 0.1 to 10 atmospheres, or by irradiating the reactants with ultraviolet light of 200 to 400 nanometers at temperatures of -30.degree. to 150.degree. C. The resulting dimers, trimers, polysubstituted polyphenyls, polyheterocyclics and trifluoromethylated aromatics are useful as heat transfer media, as intermediates for high molecular weight polymers, pesticides and petroleum additives, and as scintillation counters.

REFERENCES:
patent: 2446132 (1948-07-01), Evans
patent: 2773844 (1956-12-01), Carlson
patent: 3144416 (1964-08-01), Hosada
patent: 3775352 (1973-11-01), Leonard, Jr.
patent: 3779952 (1973-12-01), Leonard, Jr.
patent: 3943069 (1976-03-01), Antonelli
patent: 4065442 (1977-12-01), Fields et al.

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