Organic compounds -- part of the class 532-570 series – Organic compounds – Sulfonic acids or salts thereof
Reexamination Certificate
2006-10-10
2006-10-10
Witherspoon, Sikarl A. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Sulfonic acids or salts thereof
Reexamination Certificate
active
07119226
ABSTRACT:
A process for the facile two-step synthesis of methanol from methane is disclosed. In accordance with the invention, an appropriate combination of initiator and reaction medium is employed to achieve methane conversion in very high selectivity and yield under near-ambient temperature.
REFERENCES:
patent: 2492983 (1950-01-01), Grosse et al.
patent: 3927189 (1975-12-01), Jayawant
M.G.Axelrod, et al., Natural Gas: Fuel or Feedstock, Natural Gas Conversion II, 1994, 93-101, Elvevier.
Natural Gas Conversion VI, Table of Contents, ix-xiii, 2001, Elsevier.
A. Sen, Catalytic Functionalization of Carbon-Hydrogen and Carbon-Carbon Bonds in Protic Media, Acc. Chem. Res. 1998, 550-557.
S. Stahl, et al., Homogeneous Oxidation of Alkanes by Electrophilic Late Transition Metals, Angew, Chem, Int. Ed. 1998, 2181-2192.
R. Crabtree, Aspects of Methane Chemistry, Chem. Rev., 1995, 987-1007.
A. Shilov, et al., Activation of C-H Bonds by Metal Complexes, Chem. Rev., 1997, 2879-2932.
B. Arndtsen, et al., Selective Intermolecular Carbon-Hydrogen Bond Activation by Synthetic Metal Complexes in Homogeneous Solution, Acc. Chem. Res., 1995, 154-162.
J. Labinger, Methane Activation in Homogeneous Systems, Fuel Processing Technology, 1995, Elsevier, 325-338.
T. Hall, et al., Catalytic Synthesis of Methanol and Formaldehyde by Partial Oxidation of Methane, Fuel Processing Technology, 1995, Elsevier, 151-178.
J.L.G. Fierro, Catalysis in C1 Chemistry: Future and Prospect, Catalysis Letters 22, 1993, JC Baltzer AG, Science Publishers, 67-91.
S. Mukhopadhyay, et al., Catalyzed Sulfonation of Methane to Methanesulfonic Acid, Journal of Molecular Catalysis A Chemical 211, 2004, Elvsevier, 59-65.
N. Basickes, et al., Radical-Initiated Functionalization of Methane and Ethane in Fuming Sulfuric Acid, J. Am. Chem. Soc., 1996, 13111-13112.
S. Mukhopadhyay, et al., Synthesis of Methanesulfonyl Chloride (MSC) from Methane and Sulfuryl Choloride, The Royal Society of Chemistry, 2004, 472-473.
S. Mukhopadhyay, et al., A High-Yield Approach to the Sulfonation of Methane to Methanesulfonic Acid Initiated by H2O2 and a Metal Chloride, Angew. Chem. Int. Ed, 2003, 2990.
S. Mukhopadhyay, et al., Direct Liquid-Phase Sulfonation of Methane to Methanesulfonic Acid by SO3 in the Presence of a Metal Peroxide, Angew. Chem. Int. Ed., 2003, 1019-1021.
S. Mukhopadhyay, et al., Direct Sulfonation of Methane to Methanesulfonic Acid with SO2 Using Ca Salts as Promoters, J. Am. Chem. Soc., 2003, 4406-4407.
M. Lin, et al., Oxidation and Oxidative Carbonylation of Methane and Ethane by Hexaoxo-u-peroxiodisulfate (2-) Ion in Aqueous Medium, J. Chem. Soc., 1992, 892-893.
C. Walling, Fre Radical Reactions, Energetics of Organic Free Radicals, Blackie Academic & Professional, 1-21.
G. Russell, Reactivity, Selectivity, and Polar Effects in Hydrogen tom Transfer Reactions, Free Radicals, John Wiley & Sons, 275-331.
Lin Minren
Sen Ayusman
McQuaide, Blasko, Fleming & Faulkner, Inc
The Penn State Research Foundation
Witherspoon Sikarl A.
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