Process for the preparation of aryl haloformates and diaryl carb

Details Process for the preparation of aryl haloformates and diaryl carb Process for the preparation of aryl haloformates and diaryl carb

1994-03-16

1995-06-13

Dees, Jose G.

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

Organic compounds

Carbonate esters

558274, 558260, C07C 6802

Patent

active

054244730

ABSTRACT:
A process of preparing diaryl carbonates, such as diphenyl carbonate, and aryl haloformates, such as phenyl chloroformate. The process involves contacting phenol or a substituted phenol with a carbonyl halide, such as phosgene, in the presence of a phosphorus-containing catalyst. The catalyst is selected from alkyl phosphates, aryl phosphites, aryl phosphates, organic phosphinites and phosphinates, organic pyrophosphates, inorganic phosphorous and phosphoric acids, and phosphorus oxides.

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