2H-Pyran, tetrahydro-2-methoxy-
- Formula: C6H12O2
- Molecular weight: 116.1583
- IUPAC Standard InChI: InChI=1S/C6H12O2/c1-7-6-4-2-3-5-8-6/h6H,2-5H2,1H3
- IUPAC Standard InChIKey: XTDKZSUYCXHXJM-UHFFFAOYSA-N
- CAS Registry Number: 6581-66-4
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: 2-Methoxytetrahydropyran; tetrahydro-2-methoxy-2H-pyran
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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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| S°gas | 87.811 | cal/mol*K | N/A | Wiberg K.B., 1989 | Selected values were obtained by ab initio calculation. |
Constant pressure heat capacity of gas
| Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 33.659 | 298.15 | Wiberg K.B., 1989 | Selected values were obtained by ab initio calculation. |
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 by: 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
+
=
By formula: H2 + C6H10O2 = C6H12O2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -25.89 ± 0.28 | kcal/mol | Chyd | Allinger, Glaser, et al., 1981 | liquid phase; solvent: Hexane |
Gas Chromatography
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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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, non-polar column, isothermal
| Column type | Active phase | Temperature (C) | I | Reference | Comment |
|---|---|---|---|---|---|
| Packed | Apiezon L | 170. | 870. | Jonas, Janák, et al., 1966 | H2 |
| Packed | Apiezon L | 170. | 890. | Jonas, Janák, et al., 1966 | H2 |
| Packed | Apiezon L | 170. | 870. | Jonas, Kratochvíl, et al., 1966 | Column length: 2. m |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Wiberg K.B., 1989
Wiberg K.B.,
Rotational barriers. 4. Dimethoxymethane. The anomeric effect revisited.,
J. Am. Chem. Soc., 1989, 111, 4821-4828. [all data]
Allinger, Glaser, et al., 1981
Allinger, N.L.; Glaser, J.A.; Davis, H.E.,
Heats of hydrogenation of some vinyl ethers and related compounds,
J. Org. Chem., 1981, 46, 658-661. [all data]
Jonas, Janák, et al., 1966
Jonas, J.; Janák, J.; Kratochvíl, M.,
Structural investigations with the aid of Kovats retention index system on one (nonpolar) stationary phase,
J. Gas Chromatogr., 1966, 4, 9, 332-335, https://doi.org/10.1093/chromsci/4.9.332
. [all data]
Jonas, Kratochvíl, et al., 1966
Jonas, J.; Kratochvíl, M.; Gross, H.; Janák, J.,
Über α-halogenäther XXV. Verwendung des Kovatsschen retentionsiondexsystems zur identifizierung von acetalen der tetrahydropyranreihe,
Collect. Czech. Chem. Commun., 1966, 31, 6, 2399-2409, https://doi.org/10.1135/cccc19662399
. [all data]
Notes
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- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas S°gas Entropy of gas at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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