Process for the preparation of alkyl carbamates

Details Process for the preparation of alkyl carbamates Process for the preparation of alkyl carbamates

1994-09-16

1996-03-26

Reamer, James H.

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

Organic compounds

Carboxylic acid esters

560 24, C07C26904

Patent

active

055022413

ABSTRACT:
The invention relates to an efficient process for the preparation of methyl methyl carbamate by reacting methyl amine or N,N'-dimethyl urea with carbon monoxide, an oxidizing agent and a monoalcohol in the presence of a catalyst system including
(i) a precursor selected from the group consisting of platinum group metals and soluble compounds of platinum group metals, and (ii) a promoter comprising at least one halogen containing compound selected from the group consisting of alkali metal halides, alkaline earth metal halides, quaternary ammonium halides, oxo acids of halogen atoms and their salts, and complex compounds containing halogen ions, organic halides and halogen molecules.

REFERENCES:
patent: 4297501 (1981-10-01), Becker et al.
patent: 4582923 (1986-04-01), Slammann et al.
patent: 4621149 (1986-11-01), Fukuoka et al.
patent: 4694097 (1987-09-01), Alper et al.

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