Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1988-01-29
1992-03-24
Page, Thurman K.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
585643, 585708, 502216, C07B 4700, C07D14782
Patent
active
050990144
ABSTRACT:
Compositions containing sulfuric acid and one or more of certain chalcogen-containing compounds in which the chalcogen compound/H.sub.2 SO.sub.4 molar ratio is below 2 contain the mono-adduct of sulfuric acid which is catalytically active for promoting organic chemical reactions. Suitable chalcogen-containing compounds have the empirical formula ##STR1## wherein X is a chalcogen, each of R.sub.1 and R.sub.2 is independently selected from hydrogen, NR.sub.3 R.sub.4, and NR.sub.5, at least one of R.sub.1 and R.sub.2 is other than hydrogen, each of R.sub.3 and R.sub.4 is hydrogen or a monovalent organic radical, and R.sub.5 is a divalent organic radical. Such compositions are useful for catalyzing organic reactions such as oxidation, oxidative addition, reduction, reductive addition, esterification, transesterification, hydrogenation, isomerication (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 chalcogen compound-sulfuric compositions with one or more transition metal halides and/or with one or more surfactants. The surfacant-containing compositions are particularly useful for the treatment of materials containing lipophilic substances. Novel compositions containing a chalcogen compound-sulfuric acid component and one or more organic reactants are also disclosed.
REFERENCES:
patent: 1340708 (1920-05-01), Fjellanger
patent: 2237459 (1941-04-01), Thompson
patent: 2902430 (1959-09-01), Kimberlin
patent: 2978359 (1961-04-01), Wedell
patent: 3095368 (1963-06-01), Bieber et al.
patent: 3660070 (1972-05-01), Maruta et al.
patent: 3778431 (1973-12-01), Knightlinger et al.
patent: 3816375 (1974-06-01), Bozer et al.
patent: 3918952 (1975-11-01), Neumiller
patent: 4214888 (1980-07-01), Young
patent: 4310343 (1982-01-01), Verdegaal et al.
patent: 4315763 (1982-02-01), Stoller et al.
patent: 4397675 (1983-08-01), Young
patent: 4402852 (1983-09-01), Young
patent: 4404116 (1983-09-01), Young
patent: 4439348 (1984-03-01), Akerberg
patent: 4445925 (1984-05-01), Young
patent: 4447253 (1984-05-01), Young
patent: 4451577 (1984-05-01), Coss
patent: 4512813 (1985-04-01), Young
patent: 4522644 (1985-06-01), Young
patent: 4722986 (1988-02-01), Young
Chem. Abstracts, vol. 92, Entry 170005x, Reynolds et al.
Sulfur Institute Bulletin, No. 10, (1964), Washington, D.C., p. 3.
Kirk-Othmer Encyclopedia of Chemical Technology, Third Edition, John Wiley and Sons, New York, 1980.
D. F. duToit, Verslag Akad. Wetenschappen, 22, 573-4, (abstracted in Chemical Abstracts, 8, 2346, (1914).
L. H. Dalman, "Ternary Systems of Urea and Acids. I. Urea, Nitric Acid and Water. II. Urea, Sulfuric Acid and Water. III. Urea, Oxalic Acid and Water", JACS, 56, 549-53, (1934).
"Organic Chemistry of Bivalent Sulfur", Chemical Publishing Co., 1962, pp. 14, 15, 94 and 95.
"The Chemistry of Carboxylic Acids and Esters", Interscience Publishers, 1969, pp. 732, 733, 758 and 759.
Donald C. Young, U.S. Ser. No. 442,296 filed 11/17/82 for Systemic Herbicidal Compositions and Methods of Use.
Kulkosky Peter F.
Page Thurman K.
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