Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From protein or biologically active polypeptide reactant
Patent
1985-10-03
1988-05-10
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From protein or biologically active polypeptide reactant
527300, 527312, 525 541, 525418, 502100, 502168, 502215, C08H 504, C08F 2042, B01J 2300, C08L 8900
Patent
active
047436697
ABSTRACT:
Certain urea-sulfuric acid components, comprised of urea and sulfuric acid in a 1/4 to 7/4 molar ratio, contain a monourea adduct of sulfuric acid, which is catalytically active for promoting organic chemical reactions. The invention provides methods employing such urea-sulfuric acid components for catalyzing organic reactions such as oxidation, oxidative addition, reduction, reductive addition, esterification, transesterification, hydrogenation, isomerization (including racemization of optical isomers), alkylation, polymerization, demetallization of organometallics, nitration, Friedel-Crafts reactions, and hydrolysis. Novel catalysts are disclosed which involve combinations of the urea-sulfuric component with one or more transition metal halides and/or with one or more surfactants. The surfactant-containing compositions are particularly useful for the treatment of materials containing lipophilic substances. Novel compositions containing the urea-sulfuric acid component and one or more organic reactants are also disclosed.
REFERENCES:
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patent: 3778431 (1975-12-01), Kightlinger et al.
patent: 3816375 (1974-06-01), Bozer et al.
patent: 4439348 (1984-03-01), Aperberg
patent: 4451577 (1984-05-01), Coss
Organic Chemistry of Bivalent Sulfur, vol. IV Chem. Pub. Co. 1962 Reid, pp. 14, 15, 94, 95.
Chemistry of Carboxylic Acids and Esters, Ed. G. Patai 1969 pp. 732-733, 758, 759.
Kulkosky Peter F.
Laird Michael H.
Sandford D.
Schofer Joseph L.
Union Oil Company of California
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