Process for the procuction of aromatic urethanes
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United States of America Patent
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Nov 18, 1997
Grant Date -
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 urethanes in which 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 zinc and/or copper carbonate hydroxide. The process gives high yields and selectivity in the useful reaction product.
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