Process for the production of aromatic carbamates
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United States of America Patent
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Dec 16, 1997
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N/A
app pub date -
Jun 27, 1996
filing date -
Jul 6, 1995
priority date (Note) -
Expired
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Abstract
A process is described for the preparation of aromatic carbamates in which an organic carbonate in a stoichiometric quantity or in a quantity higher than the stoichiometric value is reacted with an aromatic amine operating in the presence of a carbamation catalyst, wherein this catalyst is selected from N,N-substituted carbamate complexes of zinc or copper. The process gives high yields and selectivity in the useful reaction product.
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