Patents by Inventor Roy A. Periana

Roy A. Periana has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20060241327
    Abstract: This invention discloses methods and processes for selectively converting hydrocarbons such as methane to materials such as alcohols or other materials containing more reactive functionalities.
    Type: Application
    Filed: February 24, 2006
    Publication date: October 26, 2006
    Inventors: Roy Periana, William Goddard
  • Publication number: 20060167314
    Abstract: Provided herein are processes for conversion of methane to acetic acid. In one embodiment, the processes are for direct, selective conversion of methane to acetic acid in a single step.
    Type: Application
    Filed: July 19, 2005
    Publication date: July 27, 2006
    Inventor: Roy Periana
  • Publication number: 20030120125
    Abstract: This invention is an improved process for the selective oxidation of lower alkane starting materials (such as methane) into esters and, optionally, into various derivatives (such as methanol) in oxidizing acidic media using a stable platinum group metal ligand catalyst complex at elevated temperatures and to a class of novel platinum group metal ligand complexes employed bidiazine ligands, which are sufficiently stable in the oxidizing acidic media at elevated temperatures to be effective catalysts in the alkane conversion reaction.
    Type: Application
    Filed: October 11, 2002
    Publication date: June 26, 2003
    Inventors: Roy A. Periana, Douglas J. Taube, Scott Gamble, Henry Taube
  • Patent number: 6127590
    Abstract: This invention relates generally to the field of chemical synthesis, and more specifically, to the field of oxidative coupling of olefinic compounds and aromatic compounds, to produce olefinically substituted aromatic compounds. More particularly, this invention relates to methods for oxidative coupling of olefinic compounds and aromatic compounds which employ a rhodium(III) acetylacetonate catalyst and a copper(II) redox agent in a reaction medium which does not comprise a carboxylic acid component. In one embodiment, this invention pertains to methods for the preparation of styrene by the oxidative coupling of ethylene (an olefinic compound) and benzene (an aromatic compound), in the presence of Rh(acac).sub.2 Cl(H.sub.2 O), as catalyst, and Cu(II)(CH.sub.3 COO).sub.2, as copper(II) redox agent, in which benzene is both a reactant and the reaction medium.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: October 3, 2000
    Assignee: Nippon Mitsubishi Oil Corporation
    Inventors: Douglas Taube, Roy Periana, Takaya Matsumoto
  • Patent number: 5306855
    Abstract: This invention is a process for converting lower alkanes into their corresponding esters and optionally into various intermediates (such as alcohols) and other liquid hydrocarbons. The alkanes are oxidatively converted to oxy-esters at high selectivity and conversion and at practical reaction rates using at least catalytic amounts of certain class "B" metals and/or metal ions defined by the Pearson definition as "soft" or "borderline". Desirable catalysts comprise such metals as Pd, Tl, Pt, Hg, and Au. If so desired, the alkyl oxy-esters may be converted to alcohols or other intermediates such as alkyl halides. The oxy-esters, alcohols, and other intermediates may optionally be converted to liquid hydrocarbons such as gasoline.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: April 26, 1994
    Assignee: Catalytica, Inc.
    Inventors: Roy A. Periana, Douglas J. Taube, Henry Taube, Eric R. Evitt
  • Patent number: 5233113
    Abstract: This invention is a process for converting lower alkanes into their corresponding esters and optionally into various intermediates (such as methanol) and other liquid hydrocarbons. The alkanes are oxidatively converted to oxy-esters at high selectivity using catalytic amounts of a Group VIII noble metal. If so desired, the alkyl oxy-esters may be converted to alcohols or other intermediates such as alkyl halides. The oxy-esters, alcohols, and other intermediates may optionally be converted to liquid hydrocarbons such as gasoline.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: August 3, 1993
    Assignee: Catalytica, Inc.
    Inventors: Roy A. Periana, Eric R. Evitt, Henry Taube
  • Patent number: 5177049
    Abstract: A process for the production of para-oriented dicarboxylic aromatic acids is disclosed in which an aromatic compound, having a tertiary alkyl group, is oxidized with molecular oxygen in the presence of a catalytic composition comprising a cobalt salt, a minor amount of a manganese salt, and a source of chloride in the presence of a solvent.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: January 5, 1993
    Assignee: Monsanto Company
    Inventors: Roy A. Periana, George F. Schaefer
  • Patent number: 5068407
    Abstract: A process for the production of para-oriented dicarboxylic aromatic acids is disclosed in which an aromatic compound, having a tertiary alkyl group, is oxidized with molecular oxygen in the presence of a catalytic composition comprising a cobalt salt, a minor amount of a manganese salt, and a source of chloride in the presence of a solvent.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: November 26, 1991
    Assignee: Monsanto Company
    Inventors: Roy A. Periana, George F. Schaefer
  • Patent number: 4879398
    Abstract: A process for making 2,6-disubstituted tyrosine by the noble metal coupling of a disubstituted aromatic halide or diazonium salt with an amino-protected 2-aminoacrylic acid to form a (Z)-.beta.-(disubstituted phenyl)-.alpha.-acylaminoacrylate, and asymmetrically hydrogenating the acrylate to produce the 2,6-disubstituted tyrosine.
    Type: Grant
    Filed: December 31, 1987
    Date of Patent: November 7, 1989
    Assignee: Monsanto Company
    Inventors: Daniel P. Getman, Roy A. Periana, Dennis P. Riley
  • Patent number: 4746760
    Abstract: Process for functionalizing saturated hydrocarbons comprising:(a) reacting said saturated hydrocarbons of the formula:R.sub.1 Hwherein H represents a hydrogen atom; and R.sub.1 represents a saturated hydrocarbon radical, with a metal complex of the formula:CpRh[P(R.sub.2).sub.3 ]H.sub.2whereinCp represents a cyclopentadienyl or alkylcyclopentadienyl radical;Rh represents a rhodium atom;P represents a phosphorus atom;R.sub.2 represents a hydrocarbon radical;H represents a hydrogen atom,in the presence of ultraviolet radiation to form a hydridoalkyl complex of the formula:CpRh[P(R.sub.2).sub.3 ](R.sub.1)H(b) reacting said hydridoalkyl complex with an organic halogenating agent such as a tetrahalomethane or a haloform of the formulas:CX'X''X'''X'''' or CHX'X''X'''wherein X', X'', X'", X"" represent halogens selected from bromine, iodine or chlorine atom, at a temperature in the range of about -60.degree. to -17.degree. C. to form the corresponding haloalkyl complex of step (a) having the formula:CpRhPMe.sub.
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: May 24, 1988
    Assignee: Chevron Research Company
    Inventors: Robert G. Bergman, Andrew H. Janowicz, Roy A. Periana
  • Patent number: 4554372
    Abstract: 2-Substituted alkyl (2-substituted alkyl)carbamates useful as intermediates in the preparation of epoxy derivatives of olefins are prepared by reacting 2-oxazolidones with an olefin and an electrophile such as halogen.
    Type: Grant
    Filed: August 21, 1984
    Date of Patent: November 19, 1985
    Assignee: The Dow Chemical Company
    Inventors: James M. Renga, Roy A. Periana-Pillai, Kevin A. Frazier
  • Patent number: 4511745
    Abstract: Process for functionalizing saturated hydrocarbons selectively in the terminal position comprising:(a) reacting said saturated hydrocarbons of the formula:RHwhere:H represents a hydrogen atom, andR represents a saturated hydrocarbon radical,with a metal complex of the formula:CpRhPMe.sub.3 H.sub.2where:Cp represents a pentamethylated cyclopentadienyl radical,Rh represents a rhodium atom,P represents a phosphorous atom,Me represents a methyl group,H represents a hydrogen atom,in the presence of ultraviolet radiation at a temperature maintained at about -60.degree. to -17.degree. C. to form a hydridoalkyl complex of the formula:CpRhPMe.sub.3 RH(b) reacting said hydridoalkyl complex with a haloform of the formula:CHX.sub.3where:X represents a bromine, iodine or chlorine atom,at a temperature in the range of about -60.degree. to -17.degree. C. to form the corresponding haloalkyl complex of step (a) having the formula:CpRhPMe.sub.3 RX; and,(c) reacting said haloalkyl complex formed in (b) with halogen (X.sub.
    Type: Grant
    Filed: June 12, 1984
    Date of Patent: April 16, 1985
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Robert G. Bergman, Andrew H. Janowicz, Roy A. Periana-Pillai
  • Patent number: 4413137
    Abstract: Vicinal epoxides and an alkylene dihalide are prepared by contacting a mixture comprising ethylene carbonate and a .beta.-haloalkyl carbonate with an initiator at a temperature from about 25.degree. C. to about 260.degree. C.
    Type: Grant
    Filed: June 21, 1982
    Date of Patent: November 1, 1983
    Assignee: The Dow Chemical Company
    Inventors: James M. Renga, Roy A. Periana-Pillai
  • Patent number: 4332729
    Abstract: The thermal decomposition of a halogenated aliphatic carbonate at about 100.degree. C.-300.degree. C. to produce a cyclic carbonate and an aliphatic halide is accelerated by the presence of chemically combined mercury.
    Type: Grant
    Filed: July 17, 1981
    Date of Patent: June 1, 1982
    Assignee: The Dow Chemical Company
    Inventors: James M. Renga, Roy A. Periana-Pillai
  • Patent number: 4331604
    Abstract: The thermal decomposition of a .beta.-halogenated aliphatic carbonate at about 100.degree. C.-300.degree. C. to produce a cyclic alkylene carbonate and an aliphatic halide is accelerated by the presence of a polar solvent, preferably the cyclic carbonate product. Further improvement may be obtained when there is additionally present a mercury compound.
    Type: Grant
    Filed: July 17, 1981
    Date of Patent: May 25, 1982
    Assignee: The Dow Chemical Company
    Inventors: James M. Renga, Roy A. Periana-Pillai