Identification | Back Directory | [Name]
5,6-DIHYDRO-2H-PYRAN-2-ONE | [CAS]
3393-45-1 | [Synonyms]
Dihydropyranone delta-2-Pentenolide 5,6-Dihydro-2-pyrone 5,6-Dihydro-α-pyrone 2,5-dihydropyran-6-one 5,6-Dihydro-2-pyranone 5,6-Dihydro-alpha-pyrone 5,6-DIHYDRO-2H-PYRAN-2-ONE 2H-Pyran-2-one, 5,6-dihydro- 5,6-Dihydro-2H-pyran-2-one 5-Hydroxy-2-pentenoic acid delta-lactone 2-Pentenoic acid, 5-hydroxy-, delta-lactone 5,6-DIHYDRO-2H-PYRAN-2-ONE, TECH GRADE, 90% 5,6-Dihydro-2H-pyran-2-one technical grade, 90% | [EINECS(EC#)]
-0 | [Molecular Formula]
C5H6O2 | [MDL Number]
MFCD00010439 | [MOL File]
3393-45-1.mol | [Molecular Weight]
98.1 |
Chemical Properties | Back Directory | [Boiling point ]
103 °C10 mm Hg(lit.)
| [density ]
1.139 g/mL at 25 °C(lit.)
| [refractive index ]
n20/D 1.483(lit.)
| [Fp ]
115 °F
| [storage temp. ]
2-8°C
| [form ]
clear liquid | [color ]
Colorless to Light orange to Yellow | [Sensitive ]
Moisture Sensitive | [BRN ]
1610 | [InChIKey]
QBDAFARLDLCWAT-UHFFFAOYSA-N | [CAS DataBase Reference]
3393-45-1 |
Hazard Information | Back Directory | [Uses]
5,6-Dihydro-2H-pyran-2-one has been used in the preparation of:
- (1aR,5aR,5bS,6S,7S)-6,7-di-tert-butoxy-5-oxo-pyrrolidino[1,2-b]isoxazolidino[4,5-c]tetrahydropyran
- 4-(phenyl)tetrahydro-2H-pyran-2-one
| [Synthesis Reference(s)]
The Journal of Organic Chemistry, 49, p. 1647, 1984 DOI: 10.1021/jo00183a030 Tetrahedron Letters, 25, p. 4783, 1984 DOI: 10.1016/S0040-4039(01)81518-5 | [General Description]
Enantioselective conjugate addition of Grignard reagents to 5,6-dihydro-2H-pyran-2-one catalyzed by a chiral phosphine-copper iodide catalyst has been reported. |
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