4-Methoxy-1-methyl-2-pyrimidinone
- Formula: C6H8N2O2
- Molecular weight: 140.1399
- IUPAC Standard InChI: InChI=1S/C6H8N2O2/c1-8-4-3-5(10-2)7-6(8)9/h3-4H,1-2H3
- IUPAC Standard InChIKey: OKKDJPCAKBHZBZ-UHFFFAOYSA-N
- CAS Registry Number: 7152-66-1
- Chemical structure:
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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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔvapH° | 19. ± 2. | kcal/mol | V | Beak and White, 1982 |
Reaction thermochemistry data
Go To: Top, Phase change data, References, Notes
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
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By formula: C6H8N2O2 = C6H8N2O2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -24.8 ± 1.3 | kcal/mol | Ciso | Beak and White, 1982 | liquid phase |
| ΔrH° | -27. ± 4.1 | kcal/mol | Ciso | Beak and White, 1982 | gas phase |
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.
Beak and White, 1982
Beak, P.; White, J.M.,
Relative enthalpies of 1,3-dimethyl-2,4-pyrimidinedione, 2,4-dimethoxypyrimidine, and 4-methoxy-1-methyl-2-pyrimidinone: estimation of the relative stabilities of two protomers of uracil,
J. Am. Chem. Soc., 1982, 104, 7073-7077. [all data]
Notes
Go To: Top, Phase change data, Reaction thermochemistry data, References
- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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