Catalytic aromatic carbonate process using manganese tetradentat

Details Catalytic aromatic carbonate process using manganese tetradentat Catalytic aromatic carbonate process using manganese tetradentat

1979-11-23

1982-09-14

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260429H, C07C 6804

Patent

active

043494854

ABSTRACT:
An enhanced catalytic aromatic carbonate process which comprises contacting a phenol, carbon monoxide, an oxidant, a base, the Group VIIIB element selected from ruthenium, rhodium, palladium, osmium, iridium or platinum, and a manganese tetradentate redox co-catalyst. The resulting aromatic mono- and/or poly-carbonates are useful in the preparation of polycarbonates or as polycarbonates per se, respectively, which can be molded or formed into films, sheets, fibers, laminates or reinforced plastics by conventional techniques.

REFERENCES:
patent: 2556316 (1951-06-01), Cartledge
patent: 2926184 (1960-02-01), Irish et al.
patent: 3053804 (1962-09-01), Caldwell et al.
patent: 4096168 (1978-06-01), Hallgren
patent: 4096169 (1978-06-01), Chalk

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