Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1981-02-26
1982-07-13
Breitenstein, G. T.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
260465D, 544 37, 560 9, 560 12, 560 13, 560 24, 560 27, 560 28, 560 30, 560 31, 560 32, 560 33, 560115, 560132, 560133, 560134, 560136, 560135, 560157, 560158, C07C125073
Patent
active
043395929
ABSTRACT:
A urethane is produced by reacting an organic nitro compound with carbon monoxide and an organic compound containing at least one hydroxyl group in the presence of a catalyst and a co-catalyst. This reaction is conducted in the liquid phase at elevated temperature and pressure. The catalyst employed is an element and/or compound of an element from the group of noble metals of the 8th Secondary Group of the Periodic Table. The co-catalyst used is formed from (1) a component taken from the group consisting of iron oxychloride, a mixture of iron compounds containing iron oxychloride and oxide-chloride combinations and (2) metallic iron or an iron alloy in finely divided or high surface form. The oxides which may be used in the oxide-chloride combinations of co-catalyst component (1) are the oxides and/or oxide hydrates of tetravalent tin, trivalent chromium, hexavalent molybdenum, hexavalent tungsten, pentavalent vanadium, divalent iron and trivalent iron. The chlorides which may be used in this oxide-chloride combination are chlorides of the elements of Groups IIIA, IVA, VA and IB to VIIIB of the Periodic Table and/or hydrochlorides of tertiary amines.
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Becker Robert
Grolig Johann
Rasp Christian
Stammann Gunter
Bayer Aktiengesellschaft
Breitenstein G. T.
Gil Joseph C.
Harsh Gene
Whalen Lyndanne M.
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