Carbamate ester production

Details Carbamate ester production Carbamate ester production

1986-04-25

1987-09-15

Shippen, Michael L.

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

Organic compounds

Carboxylic acid esters

560 22, 560 25, 560 29, 560 30, 560 31, 560 32, 560115, 560157, 560163, C07C125065

Patent

active

046940979

ABSTRACT:
Carbamate esters are produced by reacting at ambient or elevated temperature an amine with carbon monoxide and an alcohol in the presence of a protonic acid, a dehydrating agent, for example a molecular sieve, and a catalyst comprising (a) at least one metal selected from the group palladium, rhodium, ruthenium, iridium and cobalt, and (b) at least one of the metals copper, molybdenum and iron, the components (a) and (b) being in the form of elemental metals or compounds thereof. The presence of the dehydrating agent reduces the formation of by-product carbon dioxide.

REFERENCES:
patent: 4251667 (1981-02-01), Kesling
patent: 4260781 (1981-04-01), Harvey
patent: 4297501 (1981-10-01), Becker et al.

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