Process for preparing alkylene carbonates from alkylene oxides

Details Process for preparing alkylene carbonates from alkylene oxides Process for preparing alkylene carbonates from alkylene oxides

1989-04-10

1990-06-05

Hollrah, Glennon H.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D31712

Patent

active

049315714

ABSTRACT:
An alkylene oxide, e.g. ethylene oxide, is prepared from the corresponding alkylene carbonate, e.g. ethylene carbonate, in the presence of an effective amount of a quaternary arsonium halide. The quaternary arsonium halides are also effective catalysts for the reverse reaction, that is, to form alkylene carbonates from the corresponding epoxide and carbon dioxide.

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patent: 2766258 (1956-10-01), Malkemus
patent: 2873282 (1959-02-01), McClellan
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patent: 3297634 (1967-01-01), Oxenrider et al.
patent: 3535342 (1970-10-01), Emmons
patent: 4226778 (1980-10-01), Venturello et al.
patent: 4841072 (1989-06-01), Harvey

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