IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0423682
(1989-10-18)
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발명자
/ 주소 |
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출원인 / 주소 |
- Union Oil Company of California
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대리인 / 주소 |
Wirzbicki, Gregory F.Laird, Michael H.
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인용정보 |
피인용 횟수 :
0 인용 특허 :
26 |
초록
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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
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, 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.
대표청구항
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1. A composition comprising a solution containing a herbicidally effective amount of the monourea adduct of sulfuric acid and a member selected from the group consisting of surfactants, polar solvents other than water, and combinations thereof, which composition is characterized by herbicidal activi
1. A composition comprising a solution containing a herbicidally effective amount of the monourea adduct of sulfuric acid and a member selected from the group consisting of surfactants, polar solvents other than water, and combinations thereof, which composition is characterized by herbicidal activity. 2. The composition defined in claim 1 which comprises a surfactant and water. 3. A herbicidal composition comprising a herbicidally effective amount of the monourea adduct of sulfuric acid and an amount of a member selected from the group consisting of surfactants, polar solvents other than water, and combinations thereof sufficient to increase the wetting ability of said composition for plant foliage, which composition is characterized by non-selective, contact, herbicidal activity. 4. The composition defined in claim 3 which comprises a surfactant and water. 5. The composition defined in claim 3 which comprises a polar solvent other than water. 6. A herbicidal composition comprising a herbicidally effective amount of the monourea adduct of sulfuric acid and a surfactant. 7. A herbicidal composition comprising a solution containing a herbicidally effective amount of the monourea adduct of sulfuric acid, a surfactant, and water, and which is characterized by non-selective, contact, herbicidal activity. 8. A composition of matter comprising the monourea adduct of sulfuric acid and a member selected from the group consisting of surfactants, polar solvents other than water, and combinations thereof. 9. The composition defined in any one of claims 1, 3, 6 or 8, which further comprises water. 10. The composition defined in any one of claims 1, 3 or 8, which comprises a surfactant. 11. The composition defined in any one of claims 1, 3 or 8 comprising a polar solvent selected from the group consisting of dimethylsulfoxide, halogenated hydrocarbons, oxygenated hydrocarbons, and combinations thereof. 12. The composition defined in any one of claims 1, 3, or 8 free of any unadducted sulfuric acid. 13. The composition defined in any one of claims 1, 3, or 8, wherein the molar ratio of equivalent urea to equivalent sulfuric acid is at least 1. 14. The composition defined in any one of claims 1, 3, 6, 7 or 8, which is free of thermal decomposition products of urea. 15. The composition defined in any one of claims 6 or 8, which comprises surfactant and water. 16. The composition defined in any one of claims 1, 3, 6, 7 or 8 which is free of sulfamic acid and ammonium sulfamate.
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