ChemicalBook > CAS DataBase List > 5,6-DIHYDRO-2H-PYRAN-2-ONE

5,6-DIHYDRO-2H-PYRAN-2-ONE

Product Name
5,6-DIHYDRO-2H-PYRAN-2-ONE
CAS No.
3393-45-1
Chemical Name
5,6-DIHYDRO-2H-PYRAN-2-ONE
Synonyms
2H-Pyran-2-one, 5,6-dihydro-;Dihydropyranone;delta-2-Pentenolide;5,6-Dihydro-2-pyrone;5,6-Dihydro-α-pyrone;2,5-dihydropyran-6-one;5,6-Dihydro-2-pyranone;3,6-DIHYDROPYRAN-2-ONE;2,3-dihydropyran-6-one;5,6-Dihydro-alpha-pyrone
CBNumber
CB1204311
Molecular Formula
C5H6O2
Formula Weight
98.1
MOL File
3393-45-1.mol
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5,6-DIHYDRO-2H-PYRAN-2-ONE Property

Boiling point:
103 °C/10 mmHg (lit.)
Density 
1.139 g/mL at 25 °C (lit.)
refractive index 
n20/D 1.483(lit.)
Flash point:
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
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Safety

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
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H226Flammable liquid and vapour

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P403+P235Store in a well-ventilated place. Keep cool.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
262102
Product name
5,6-Dihydro-2H-pyran-2-one
Purity
technical grade, 90%
Packaging
1g
Price
$32.68
Updated
2024/03/01
Sigma-Aldrich
Product number
262102
Product name
5,6-Dihydro-2H-pyran-2-one
Purity
technical grade, 90%
Packaging
10g
Price
$452
Updated
2024/03/01
TCI Chemical
Product number
D2261
Product name
5,6-Dihydro-2H-pyran-2-one
Purity
>95.0%(GC)
Packaging
1g
Price
$82
Updated
2024/03/01
TCI Chemical
Product number
D2261
Product name
5,6-Dihydro-2H-pyran-2-one
Purity
>95.0%(GC)
Packaging
5g
Price
$279
Updated
2024/03/01
TCI Chemical
Product number
D2261
Product name
5,6-Dihydro-2H-pyran-2-one
Purity
>95.0%(GC)
Packaging
25g
Price
$948
Updated
2024/03/01
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5,6-DIHYDRO-2H-PYRAN-2-ONE Chemical Properties,Usage,Production

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.

5,6-DIHYDRO-2H-PYRAN-2-ONE Preparation Products And Raw materials

Raw materials

Preparation Products

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5,6-DIHYDRO-2H-PYRAN-2-ONE Suppliers

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View Lastest Price from 5,6-DIHYDRO-2H-PYRAN-2-ONE manufacturers

Shaanxi Dideu Medichem Co. Ltd
Product
5,6-Dihydro-2H-pyran-2-one 3393-45-1
Price
US $0.01-1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50 tons
Release date
2020-04-27
Dideu Industries Group Limited
Product
5,6-DIHYDRO-2H-PYRAN-2-ONE 3393-45-1
Price
US $1.10/g
Min. Order
1g
Purity
99.00%
Supply Ability
100 Tons Min
Release date
2021-10-29
Nanjing jinheyou Trading Co., Ltd.
Product
5,6-DIHYDRO-2H-PYRAN-2-ONE 3393-45-1
Price
US $0.00/g
Min. Order
1g
Purity
98%min
Supply Ability
20kg/month
Release date
2019-11-01

3393-45-1, 5,6-DIHYDRO-2H-PYRAN-2-ONERelated Search:

5,6-DIHYDRO-2H-PYRAN-2-ONE RUBRATOXIN B Kavain Osaterone Aflatoxin METHYSTICIN AFLATOXIN G1 DIHYDROMETHYSTICIN NSC107662 AFLATOXIN G2 6-heptyl-5,6-dihydro-2H-pyran-2-one 4-Chromanone 6-Pentyl-5,6-dihydro-2H-pyran-2-one Dihydrokawain 6,8-DIMETHYL-4',5,7-TRIHYDROXYFLAVANONE 8-Fluoro-4-chromanone 6-Fluoro-4-chromanone 6-[2-(1,3-Benzodioxol-5-yl)ethyl]-4-methoxy-5,6-dihydro-2H-pyran-2-one

  • 2-Pentenoic acid, 5-hydroxy-, delta-lactone
  • 5,6-Dihydro-2-pyranone
  • 5,6-DIHYDRO-2H-PYRAN-2-ONE
  • Dihydropyranone
  • 5,6-DIHYDRO-2H-PYRAN-2-ONE, TECH GRADE, 90%
  • 5,6-Dihydro-2H-pyran-2-one technical grade, 90%
  • 5,6-Dihydro-2<i>H</i>-pyran-2-one
  • 2,5-dihydropyran-6-one
  • 2H-Pyran-2-one, 5,6-dihydro-
  • 5,6-Dihydro-alpha-pyrone
  • 5-Hydroxy-2-pentenoic acid delta-lactone
  • delta-2-Pentenolide
  • 5,6-Dihydro-2-pyrone
  • 5,6-Dihydro-α-pyrone
  • 5,6-Dihydro-2H-pyran-2-one 97%
  • 3,6-DIHYDROPYRAN-2-ONE
  • 2,3-dihydropyran-6-one
  • 5,6-Dihydro-2H-pyran-2-one&gt
  • 5,6-DIHYDRO-2H-PYRAN-2-ONE ISO 9001：2015 REACH
  • 5,6-Dihydro-2H-pyran-2-one, 90%,
  • 3,6-dihydro-2H-pyran-2-one
  • 3393-45-1
  • Building Blocks
  • Pyrans
  • Heterocyclic Building Blocks
  • Building Blocks
  • Chemical Synthesis
  • Heterocyclic Building Blocks
  • Building Blocks
  • Heterocyclic Building Blocks
  • Pyrans
  • API intermediates