Furan, 2-methyl-

• Formula: C₅H₆O
• Molecular weight: 82.1005
• IUPAC Standard InChI: InChI=1S/C5H6O/c1-5-3-2-4-6-5/h2-4H,1H3 Copy

  
• IUPAC Standard InChIKey: VQKFNUFAXTZWDK-UHFFFAOYSA-N Copy
• CAS Registry Number: 534-22-5
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: α-Methylfuran; Silvan; Sylvan; 2-Methylfuran; 5-Methylfuran; Methylfuran; UN 2301; 2-Methylfurane
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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Gas phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Glushko Thermocenter, Russian Academy of Sciences, Moscow

Constant pressure heat capacity of gas

Condensed phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of liquid

Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Enthalpy of vaporization

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Enthalpy of fusion

Entropy of fusion

Reaction thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C₅H₅O^- +  =

By formula: C₅H₅O^- + H⁺ = C₅H₆O

 +  =

By formula: C₄H₂O₃ + C₅H₆O = C₉H₈O₄

Gas phase ion energetics data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

Appearance energy determinations

De-protonation reactions

C₅H₅O^- +  =

By formula: C₅H₅O^- + H⁺ = C₅H₆O

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Thermodynamics Research Center, 1997
Thermodynamics Research Center, Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]

Green J.H.S., 1977
Green J.H.S., Spectroscopic and thermodynamic properties of furan derivatives. I. 2- and 2,5-substituted compounds, Spectrochim. Acta, 1977, A33, 843-848. [all data]

Carlson and Westrum, 1965
Carlson, H.G.; Westrum, E.F., Jr., 2-Methylfuran. Heat capacity and thermodynamic properties from 5 to 310 K, J. Chem. Eng. Data, 1965, 10, 134-135. [all data]

Carlson and Westrum, 1965, 2
Carlson, H.G.; Westrum, E.F., Jr., 2-Methylfuran-Heat Capacity and Thermodynamic Properties from 5°to 310° K., J. Chem. Eng. Data, 1965, 10, 2, 134, https://doi.org/10.1021/je60025a018 . [all data]

Carlson, 1962
Carlson, , Ph.D. Thesis, Univ. Mich., Ann Arbor, MI, 1962. [all data]

Kobe, Ravicz, et al., 1956
Kobe, K.A.; Ravicz, A.E.; Vohra, S.P., Critical Properties and Vapor Pressures of Some Ethers and Heterocyclic Compounds, J. Chem. Eng. Data, 1956, 1, 50. [all data]

Moiseev and Antonova, 1970
Moiseev, V.D.; Antonova, N.D., Zh. Fiz. Khim., 1970, 44, 11, 2912. [all data]

Loras, Aucejo, et al., 2002
Loras, Sonia; Aucejo, Antonio; Montón, Juan B.; Wisniak, Jaime; Segura, Hugo, Phase Equilibria for 1,1,1,2,3,4,4,5,5,5-Decafluoropentane + 2-Methylfuran, 2-Methylfuran + Oxolane, and 1,1,1,2,3,4,4,5,5,5- Decafluoropentane + 2-Methylfuran + Oxolane at 35 kPa, J. Chem. Eng. Data, 2002, 47, 5, 1256-1262, https://doi.org/10.1021/je0255325 . [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Krevor and Prausnitz, 1986
Krevor, David H.; Prausnitz, John M., Vapor-liquid equilibria for model mixtures of coal-derived liquids. 1. Binary systems with 2-methylfuran, J. Chem. Eng. Data, 1986, 31, 3, 349-353, https://doi.org/10.1021/je00045a027 . [all data]

Dykyj, 1972
Dykyj, J., Petrochemia, 1972, 12, 1, 13. [all data]

Eon, Pommier, et al., 1971
Eon, C.; Pommier, C.; Guiochon, G., Vapor pressures and second virial coefficients of some five-membered heterocyclic derivatives, J. Chem. Eng. Data, 1971, 16, 4, 408-410, https://doi.org/10.1021/je60051a008 . [all data]

Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E., The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]

DePuy, Kass, et al., 1988
DePuy, C.H.; Kass, S.R.; Bean, G.P., Formation and Reactions of Heteroaromatic Anions in the Gas Phase, J. Org. Chem., 1988, 53, 19, 4427, https://doi.org/10.1021/jo00254a001 . [all data]

Balbi, 1991
Balbi, N., Dynamic calorimetry in the study of Diels-Alder reaction, Calorim. Anal. Therm., 1991, 22, 299-304. [all data]

Sparks and Poling, 1983
Sparks, B.G.; Poling, B.E., Energy storage capacity of reversible liquid-phase Diels Alder reaction between maleic anhydride and 2-methyl furan, Am. Inst. Chem. Eng. Symp. Ser. (AIChE Symp. Ser.), 1983, 29, 534-537. [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Veszpremi, Nyulaszi, et al., 1987
Veszpremi, T.; Nyulaszi, L.; Nagy, J., Ultraviolet photoelectron spectroscopy and quantum-mechanical study of alkyl- and trimethylsilyl-furanes, J. Organomet. Chem., 1987, 331, 175. [all data]

Spilker and Grutzmacher, 1986
Spilker, R.; Grutzmacher, H.-F., Isomerization and fragmentation of methylfuran ions and pyran ions in the gas phase, Org. Mass Spectrom., 1986, 21, 459. [all data]

Kobayashi, Kubota, et al., 1982
Kobayashi, T.; Kubota, T.; Ezumi, K.; Utsunomiya, C., Photoelectron angular distribution study of some isoxazoles combined with perturbation theoretic approach, Bull. Chem. Soc. Jpn., 1982, 55, 3915. [all data]

Lias and Ausloos, 1978
Lias, S.G.; Ausloos, P.J., eIonization energies of organic compounds by equilibrium measurements, J. Am. Chem. Soc., 1978, 100, 6027. [all data]

Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J., Ionization potentials of some molecules, J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]

Varsel, Morrell, et al., 1960
Varsel, C.J.; Morrell, F.A.; Resnik, F.E.; Powell, W.A., Qualitative and quantitative analysis of organic compounds. Use of low-voltage mass spectrometry, Anal. Chem., 1960, 32, 182. [all data]

Zykov, Erchak, et al., 1983
Zykov, B.G.; Erchak, N.P.; Khvostenko, V.I.; Lukevits, E.; Matorykina, V.F.; Asfandiarov, N.L., Photoelectron spectra of furylsilanes and their carbon analogs, J. Organomet. Chem., 1983, 253, 301. [all data]

Colonna, Distefano, et al., 1979
Colonna, F.P.; Distefano, G.; Guerra, M.; Jones, D.; Modelli, A., Furyl- and thienyl-mercury derivatives studied by means of ultraviolet photoelectron spectroscopy. Evidence for the participation in bonding of the vacant 6p π orbitals of mercury in bis-2-furyl-bis-2-thienylmercury, J. Chem. Soc. Dalton Trans., 1979, 2037. [all data]

Fringuelli, Marino, et al., 1976
Fringuelli, F.; Marino, G.; Taticchi, A.; Distefano, G.; Colonna, F.P.; Pignataro, S., Photoelectron spectra of the α-substituted derivatives of furan, thiophen, selenophen, and tellurophen. A comparative study of the molecular orbital energies, J. Chem. Soc. Perkin Trans. 2, 1976, 276. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References

• Symbols used in this document:
  

  AE	Appearance energy
  Cp,gas	Constant pressure heat capacity of gas
  Cp,liquid	Constant pressure heat capacity of liquid
  IE (evaluated)	Recommended ionization energy
  Pc	Critical pressure
  S°liquid	Entropy of liquid at standard conditions
  Tboil	Boiling point
  Tc	Critical temperature
  Ttriple	Triple point temperature
  Vc	Critical volume
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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