Tetrahydro-4H-pyran-4-one
Synonym(s):4-Oxotetrahydropyran
- CAS NO.：29943-42-8
- Empirical Formula: C5H8O2
- Molecular Weight: 100.12
- MDL number: MFCD00006581
- EINECS: 249-967-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-10-31 13:32:20
What is Tetrahydro-4H-pyran-4-one?
Chemical properties
colorless to light yellow liquid
The Uses of Tetrahydro-4H-pyran-4-one
Tetrahydro-4-pyrone is used in organic synthesis as building block for more complex chemical structures because it participate in a variety of cycloaddition reactions.
What are the applications of Application
Tetrahydro-4H-pyran-4-one is a synthetic intermediate for preparing the 4-methoxytetrahydropyran-4-yl protecting group
Purification Methods
Purify the pyrone by repeated distillation, preferably in a vacuum. [Baker J Chem Soc 296 1944, IR: Olsen & Bredoch Chem Ber 91 1589 1958.] The oxime has m 87-88o and b 110-111o/13mm [Cornubert et al. Bull Soc Chim Fr 36 1950]. The 4-nitrophenylhydrazone forms orange-brown needles from EtOH, m 186o [Cawley & Plant J Chem Soc 1214 1938]. [Beilstein 17 I 131, 17 II 287, 17 III/IV 4171, 17/9 V 21.]
Properties of Tetrahydro-4H-pyran-4-one
| Boiling point: | 166-166.5 °C (lit.) |
| Density | 1.084 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 134 °F |
| storage temp. | Inert atmosphere,Room Temperature |
| form | Liquid |
| color | Clear colorless to pale yellow |
| Water Solubility | MISCIBLE |
| BRN | 106463 |
| CAS DataBase Reference | 29943-42-8(CAS DataBase Reference) |
| NIST Chemistry Reference | 4H-Pyran-4-one, tetrahydro-(29943-42-8) |
Safety information for Tetrahydro-4H-pyran-4-one
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02 |
| GHS Hazard Statements |
H226:Flammable liquids |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. |
Computed Descriptors for Tetrahydro-4H-pyran-4-one
| InChIKey | JMJRYTGVHCAYCT-UHFFFAOYSA-N |
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