Organic compounds -- part of the class 532-570 series – Organic compounds – Carbonate esters
Patent
1999-08-27
2000-09-05
Ambrose, Michael G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbonate esters
558271, 558272, 558273, C07C 6800
Patent
active
061145645
ABSTRACT:
Hydroxyaromatic compounds such as phenol are carbonylated with oxygen and carbon monoxide in the presence of a catalyst system comprising a Group VIII metal having an atomic number of at least 44, preferably palladium; an alkali metal or alkaline earth metal halide, preferably sodium bromide; and at least one aliphatic polyether such as a polyethylene glycol dimethyl ether or a crown ether. The catalyst system also preferably contains a compound of another metal, preferably lead.
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Johnson Bruce Fletcher
Pressman Eric James
Shalyaev Kirill Vladimirovich
Soloveichik Grigorii Lev
Ambrose Michael G.
Crosby Mike W.
General Electric Company
Johnson Noreen C.
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