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3393-45-1

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3393-45-1 Structure

3393-45-1 Structure
IdentificationBack 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 PropertiesBack 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
[InChI]

InChI=1S/C5H6O2/c6-5-3-1-2-4-7-5/h1,3H,2,4H2
[InChIKey]

QBDAFARLDLCWAT-UHFFFAOYSA-N
[SMILES]

C1(=O)OCCC=C1
[CAS DataBase Reference]

3393-45-1
Safety DataBack Directory
[Symbol(GHS) ]

Flame (GHS02)
GHS02
[Signal word ]

Warning
[Hazard statements ]

H226
[Precautionary statements ]

P241-P280a-P501a-P210-P233-P240-P241+P242+P243-P280-P303+P361+P353-P403+P235-P501
[Risk Statements ]

10
[Safety Statements ]

23-24/25
[RIDADR ]

UN 1224 3/PG 3
[WGK Germany ]

3
[F ]

10-21
[HazardClass ]

3
[PackingGroup ]

III
[HS Code ]

2932209090
Hazard InformationBack 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.
Spectrum DetailBack Directory
[Spectrum Detail]

5,6-DIHYDRO-2H-PYRAN-2-ONE(3393-45-1)1HNMR
5,6-DIHYDRO-2H-PYRAN-2-ONE(3393-45-1)13CNMR
5,6-DIHYDRO-2H-PYRAN-2-ONE(3393-45-1)IR
5,6-DIHYDRO-2H-PYRAN-2-ONE(3393-45-1)Raman
5,6-DIHYDRO-2H-PYRAN-2-ONE(3393-45-1)FT-IR
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