Removal of sulfinic acids

Details Removal of sulfinic acids Removal of sulfinic acids

1998-02-02

1999-10-19

Redding, David A.

Chemistry: molecular biology and microbiology

Process of utilizing an enzyme or micro-organism to destroy...

Destruction of hazardous or toxic waste

4352625, 435282, 208219, 208237, 208248, B09B 300

Patent

active

059688122

ABSTRACT:
The invention relates to the unexpected discovery that the removal of the sulfinate group from an organosulfinate compound can be improved in the presence of an effective amount of a Lewis acid. The invention includes a method of removing the sulfinic acid functional group from an organosulfinic acid compound, comprising reacting the organosulfinic acid compound with an effective amount of a Lewis acid.

REFERENCES:
patent: 4562156 (1985-12-01), Isbister et al.
patent: 5002888 (1991-03-01), Kilbane, II
patent: 5094668 (1992-03-01), Kern et al.
patent: 5104801 (1992-04-01), Kilbane, II
patent: 5132219 (1992-07-01), Kilbane, II
patent: 5198341 (1993-03-01), Kilbane, II
patent: 5344778 (1994-09-01), Kilbane, II
patent: 5356801 (1994-10-01), Rambosek et al.
patent: 5356813 (1994-10-01), Monticello
patent: 5358869 (1994-10-01), Kilbane, II
patent: 5358870 (1994-10-01), Monticello et al.
patent: 5607857 (1997-03-01), Grossman et al.
Kilbane II, J.J., "Sulfur-Specific Microbial Metabolism of Organic Compounds," Resour. Cons. Recycl. 3: 69-79 (1990).
Hartdegan, F.J. et al., "Microbial Desulfurization of Petroleum: Developments in genetic engineering have led to the possibility of a bioprocess route to clean up sulfur in oil," Chem. Eng. Progress: 63-67 (May 1984).
Kilbane, J.J. "Biodesulfurization: Future Prospects in Coal Cleaning," in Proc. 7th Ann. Int'l. Pittsburg Coal Conf. : 373-382 (Sep. 10-14, 1990).
Omori, T., et al., "Desulfurization of Dibenzothiophene by Corynebacterium sp. Strain SY1," Appl. Env. Microbiol., 58 (3) : 911-915 (1992).
Izumi, Y., et al., "Selective Desulfurization of Dibenzothiophene by Rhodococcus erythropolis D-1," Appl. Env. Microbiol., 60(1) : 223-226 (1994).
Lee, M.K., et al., "Sulfur-Specific Microbial Desulfurization of Sterically Hindered Analogs of Dibenzothiophene," Appl. Environ. Microbiol., 61 (12) : 4362-4366 (1995).
Gray, K.A., et al., "Molecular mechanisms of biocatalytic desulfurization of fossil fuels," Nature Biotech., 14 : 1705-1709 (1996).
Tramondozzi, J.E., "Organic Reactions in Fused Salt Media II: Desulfination Reactions of Sodium Arylsulfinates; Other Preliminary Investigations," Ph.D. Thesis, Boston College, Boston MA(1972).
Peters, W., "Ueber das Verhalten aromatischer Sulfinsauren gegen Mercurisalze," Ber. Deut. Chem. Ges. 38:2567-2570 (1905).
Brush, J.R., et al., "Sulphinate complex intermediates in the Peters reaction," J. Organometal. Chem. 34:C1-C3 (1972).
Oldfield, C., et al., "Elucidation of the metabolic pathway dibenothiophene desulphuriization by Rhodoccucus sp. strain IGTS8 (ATCC 53968), " Microbiology 143:2961-2973 (1997).
van Afferden, M., et al., "biochemical mechanisms for the desulfurization of coal-relevant organic sulfur compounds, " Fuel 72 (12) :1635-1643 (1993).
Mihara, H., et al., "Cysteine Sulfinate Desulfinase, a NIFS-like Protein of Escherichia coli with Selenocysteine Lyase and Cysteine Desulfurase Activities, " J. Biol. Chem. 272 (36) :22417-22424 (1997).
Rhee, S-K, et al., "Desulfurization of Dibenzothiophene and Diesel Oils by a Newly Isolated Gordona Strain, CYKS1, " App. Env. Microbiol. 64(6) :2327-2331 (1998).
Hiscock, S.D., et al., "Desulfination of Allylic Sulfinic Acids: Characterization of aRetro-Ene Transition State, " J. Org. Chem. 60:7166-7169 (1995).
Koslov, V.A. and Bagrovskaya, N.A., "Protodesulfaonation of arenesulfonic acids in aqueous mineral acid solutions, " Zh. Org. Khim. 25(6) :1280-1288 (1989) (wtih English abstract).
Downs, R.L. and Wojcicki, A., "Reactions of Cyclopentadienylmetal-2-Alkenyl Carbonyl Complexes with Sulfur Dioxide. Isolation and Characterization of Metal-n-Alkenesulfinate Intermediates, " Inorg. Chim. acta 27:91-103 (1978).
Deacon, G.B. and Johnson, I.K., "organothallium Compounds. XI. Reactions of Thallic Salts with Some Sodiu, Arenesulphinates, " J. Organomet. Chem. 112:123-133 (1976).
Gallagher, J.R., et al., "Microbiol desulfurization of dibenzothiphene: a sulfur-specific pathway, " FEMS Microbiol. Lett. 107:31-36 (1993).

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