Process for the production of urethanes

Details Process for the production of urethanes Process for the production of urethanes

1980-01-17

1981-04-14

Trousof, Natalie

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

Organic compounds

Carboxylic acid esters

252438, 452441, 549 69, 560 25, 560 27, 560 28, 560 30, 560 31, 560 32, 560 33, 560115, 560132, 560157, 560158, 560 9, 560 13, C07C125065, C07C125073

Patent

active

042621305

ABSTRACT:
The present invention relates to an improved process for the production of urethanes (carbamic acid esters) by the reaction of organic nitro compounds with carbon monoxide and organic compounds containing at least one hydroxy group in the presence of palladium and/or palladium compounds and a cocatalyst which consists of a mixture of one or more iron oxides and/or iron hydroxides and activating chloride-containing additives.

REFERENCES:
patent: 3467694 (1969-09-01), Hardy et al.
patent: 3531512 (1970-09-01), Hardy et al.
patent: 3763217 (1973-10-01), Brill
patent: 3993685 (1976-11-01), Zajacek et al.
patent: 4134880 (1979-01-01), Miyata et al.
patent: 4178455 (1979-12-01), Hirai et al.
patent: 4186269 (1980-01-01), Hirai et al.
patent: 4219661 (1980-08-01), Becker et al.

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