Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Selective Monooxidation of Light Alkanes Using Chloride and Iodate

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/ja502657g· OSTI ID:1607836
 [1];  [2];  [3];  [4];  [4];  [2];  [3]
  1. Univ. of Virginia, Charlottesville, VA (United States); University of Virginia
  2. Princeton Univ., NJ (United States)
  3. Univ. of Virginia, Charlottesville, VA (United States)
  4. Scripps Research Inst., Jupiter, FL (United States)
We describe here an efficient system for the direct partial oxidation of methane, ethane, and propane using iodate salts with catalytic amounts of chloride in protic solvents. In HTFA (TFA = trifluoroacetate), >20% methane conversion with >85% selectivity for MeTFA have been achieved. The addition of substoichiometric amounts of chloride is essential, and for methane the conversion increases from <1% in the absence of chloride to >20%. The reaction further proceeds in aqueous HTFA as well as acetic acid to afford methyl acetate. 13C labeling experiments showed that less than 2% of methane is overoxidized to 13CO2 at 15% conversion of 13CH4. The system is selective for higher alkanes: 30% ethane conversion with 98% selectivity for EtTFA and 19% propane conversion that is selective for mixtures of the mono- and difunctionalized TFA esters. Research of methane conversion using a series of iodine-based reagents [I2, ICl, ICl3, I(TFA)3, I2O4, I2O5, (IO2)2S2O7, (IO)2SO4] indicated that the chloride enhancement is not limited to iodate
Research Organization:
Univ. of Virginia, Charlottesville, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
SC0001298
OSTI ID:
1607836
Alternate ID(s):
OSTI ID: 1167704
OSTI ID: 1383900
Journal Information:
Journal of the American Chemical Society, Journal Name: Journal of the American Chemical Society Journal Issue: 23 Vol. 136; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (60)

Homogeneous Oxidation of Alkanes by Electrophilic Late Transition Metals journal September 1998
Beyond Oil and Gas: The Methanol Economy book January 2009
Selective Oxidation of Alkanes and Ethers with Iodine Tris(trifluoroacetate) journal July 1976
Constitution of the Iodyl Cation journal February 1997
Selective Oxidation of Methane to Methanol Catalyzed, with CH Activation, by Homogeneous, Cationic Gold journal September 2004
Hypervalent Iodine Chemistry in Synthesis: Scope and New Directions journal June 2005
Hypervalent Iodine Goes Catalytic journal July 2006
Manganese-Catalyzed Oxidative Benzylic C-H Fluorination by Fluoride Ions journal April 2013
Site-Selective Oxidation of Unactivated C sp 3H Bonds with Hypervalent Iodine(III) Reagents journal July 2013
New Site-Selective Organoradical Based on Hypervalent Iodine Reagent for Controlled Alkane sp 3 CH Oxidations journal September 2013
Catalytic Oxy-Functionalization of Methane and Other Hydrocarbons: Fundamental Advancements and New Strategies journal December 2010
Cobalt-Catalyzed Oxidation of Methane to Methyl Trifluoroacetate by Dioxygen journal July 2013
Pressure and temperature dependence of reactions proceeding via a bound complex. 2. Application to 2CH3 → C2H5 + H journal January 1989
Homogeneous Organometallic Chemistry of Methane book January 2012
Iodine as catalyst for the direct oxidation of methane to methyl sulfates in oleum journal April 2004
Manganese oxide catalyzed methane partial oxidation in trifluoroacetic acid: Catalysis and kinetic analysis journal February 2009
Kinetic study on catalytic methane esterification in oleum catalyzed by iodine journal November 2009
Selective alkane oxidation: hot and cold approaches to a hot problem journal September 2004
Perspectives on some challenges and approaches for developing the next generation of selective, low temperature, oxidation catalysts for alkane hydroxylation based on the CH activation reaction journal September 2004
Design and study of homogeneous catalysts for the selective, low temperature oxidation of hydrocarbons journal May 2006
Dehydrogenation and Related Reactions Catalyzed by Iridium Pincer Complexes journal March 2011
Resolving Heterogeneity Problems and Impurity Artifacts in Operationally Homogeneous Transition Metal Catalysts journal October 2011
Free-radical and molecule thermochemistry from studies of gas-phase iodine-atom reactions journal February 1969
Chemistry of Polyvalent Iodine journal December 2008
C−H Bond Activations by Metal Oxo Compounds journal February 2010
Activation of C−H Bonds by Metal Complexes journal December 1997
Iodine Catalyzed Propane Oxidative Dehydrogenation Using Dibromomethane as an Oxidant journal April 2012
Silver(I)-Catalyzed Insertion of Carbene into Alkane C–H Bonds and the Origin of the Special Challenge of Methane Activation Using DFT as a Mechanistic Probe journal August 2012
The Selective High-Yield Conversion of Methane Using Iodine-Catalyzed Methane Bromination journal February 2013
Low-temperature, palladium(II)-catalyzed, solution-phase oxidation of methane to methanol derivative journal January 1991
Inter- and Intramolecular Experimental and Calculated Equilibrium Isotope Effects for (silox) 2 ( t Bu 3 SiND)TiR + RH (silox = t Bu 3 SiO):  Inferred Kinetic Isotope Effects for RH/D Addition to Transient (silox) 2 TiNSi t Bu 3 journal August 2000
Umpolung of a Metal−Carbon Bond:  A Potential Route to Porphyrin-Based Methane Functionalization Catalysts journal September 2000
Generation, alkyne cycloaddition, arene carbon-hydrogen activation, nitrogen-hydrogen activation and dative ligand trapping reactions of the first monomeric imidozirconocene (Cp2Zr:NR) complexes journal December 1988
Direct Observation of a Picosecond Alkane C−H Bond Activation Reaction at Iridium journal December 2000
Electrophilic reactions at single bonds. 20. Selective monohalogenation of methane over supported acidic or platinum metal catalysts and hydrolysis of methyl halides over .gamma.-alumina-supported metal oxide/hydroxide catalysts. A feasible path for the oxidative conversion of methane into methyl alcohol/dimethyl ether journal November 1985
Photochemistry of an ozone molecular complex with iodine monochloride in cryogenic matrixes. The infrared spectra of iodosyl chloride (OICl) and iodyl chloride (O2ICl) journal May 1984
Iridium complexes in alkane dehydrogenation journal December 1979
Mechanism of Alkane Transfer-Dehydrogenation Catalyzed by a Pincer-Ligated Iridium Complex journal July 2003
Kinetics and Mechanism of Methane, Methanol, and Dimethyl Ether C−H Activation with Electrophilic Platinum Complexes journal February 2006
Methyl Chloride Production from Methane over Lanthanum-Based Catalysts journal March 2007
Manganese Porphyrins Catalyze Selective C−H Bond Halogenations journal September 2010
Precursor Transformation during Molecular Oxidation Catalysis with Organometallic Iridium Complexes journal July 2013
Upgrading Light Hydrocarbons via Tandem Catalysis: A Dual Homogeneous Ta/Ir System for Alkane/Alkene Coupling journal May 2013
Catalytic Synthesis of n -Alkyl Arenes through Alkyl Group Cross-Metathesis journal August 2013
Catalyst-Controlled Aliphatic C–H Oxidations with a Predictive Model for Site-Selectivity journal September 2013
Spectroscopic and Theoretical Investigation of a Complex with an [O═Fe IV –O–Fe IV ═O] Core Related to Methane Monooxygenase Intermediate Q journal January 2014
Alkane Bromination Revisited:  “Reproportionation” in Gas-Phase Methane Bromination Leads to Higher Selectivity for CH 3 Br at Moderate Temperatures journal July 2006
Catalytic dehydroaromatization of n-alkanes by pincer-ligated iridium complexes journal December 2010
Oxidation of ethane and propane with cobalt( II ) catalyst: unexpected formation of 1,2-diol esters and C–C bond cleavage journal January 1991
Synthesis of thyroid hormone analogues. Part 3. Iodonium salt approaches to SK&F L-94901 journal January 1988
High yield conversion of methane to methyl bisulfate catalyzed by iodine cations journal September 2002
Activation of carbon–hydrogen bonds and dihydrogen by 1,2-CH-addition across metal–heteroatom bonds journal January 2013
670. Iodine oxygen compounds. Part II. Iodosyl and related compounds journal January 1960
Homogeneous catalysis in the oxidative functionalization of alkanes in protic media journal April 2011
Silver-Catalyzed C-C Bond Formation Between Methane and Ethyl Diazoacetate in Supercritical CO2 journal May 2011
Oxidative Aliphatic C-H Fluorination with Fluoride Ion Catalyzed by a Manganese Porphyrin journal September 2012
Main-Group Compounds Selectively Oxidize Mixtures of Methane, Ethane, and Propane to Alcohol Esters journal March 2014
Platinum Catalysts for the High-Yield Oxidation of Methane to a Methanol Derivative journal April 1998
Mechanism of the formation of carbon oxides under conditions of the oxidative chlorination of methane: IV. Kinetics of the reaction of CCl4 with oxygen on copper-containing salt catalysts for methane oxychlorination at reduced partial pressures of Cl2 in the reaction mixture journal May 2009
Iodine Oxides. Part I. On I2O3.SO3, I2O3.4SO3.H2O, I2O3.SeO3 and I2O4. journal January 1964

Cited By (6)

Beyond ferryl-mediated hydroxylation: 40 years of the rebound mechanism and C–H activation journal December 2016
Selective Photo‐Oxygenation of Light Alkanes Using Iodine Oxides and Chloride journal September 2019
Metal-free amidation of ether sp 3 C–H bonds with sulfonamides using PhI(OAc) 2 journal January 2014
Methane conversion into different hydrocarbons or oxygenates: current status and future perspectives in catalyst development and reactor operation journal January 2017
Selective functionalization of methane, ethane, and higher alkanes by cerium photocatalysis journal July 2018
Selective benzylic C–H monooxygenation mediated by iodine oxides journal January 2019

Similar Records

Manganese Catalyzed Partial Oxidation of Light Alkanes
Journal Article · Mon Apr 18 20:00:00 EDT 2022 · ACS Catalysis · OSTI ID:1883785

Mechanism of Hydrocarbon Functionalization by an Iodate/Chloride System: The Role of Ester Protection
Journal Article · Wed Feb 28 19:00:00 EST 2018 · ACS Catalysis · OSTI ID:1596591

Syntheses, structures, and vibrational spectroscopy of the two-dimensional iodates Ln(IO{sub 3}){sub 3} and Ln(IO{sub 3}){sub 3}(H{sub 2}O) (Ln =Yb, Lu)
Journal Article · Thu Dec 14 23:00:00 EST 2006 · Journal of Solid State Chemistry · OSTI ID:20900905