Skip to Content
Merck
All Photos(1)

Key Documents

262102

Sigma-Aldrich

5,6-Dihydro-2H-pyran-2-one

technical grade, 90%

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C5H6O2
CAS Number:
Molecular Weight:
98.10
Beilstein:
1610
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

grade

technical grade

Quality Level

Assay

90%

form

liquid

refractive index

n20/D 1.483 (lit.)

bp

103 °C/10 mmHg (lit.)

density

1.139 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

O=C1OCCC=C1

InChI

1S/C5H6O2/c6-5-3-1-2-4-7-5/h1,3H,2,4H2

InChI key

QBDAFARLDLCWAT-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

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.

Application

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

Pictograms

Flame

Signal Word

Warning

Hazard Statements

Hazard Classifications

Flam. Liq. 3

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

114.8 °F - closed cup

Flash Point(C)

46 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Conjugate addition of diethylzinc to a, ?-unsaturated lactones catalyzed by copper-phosphite complexes.
Yan M, et al.
Chemical Communications (Cambridge, England), 2, 115-116 (2000)
D Socha et al.
Carbohydrate research, 336(4), 315-318 (2001-12-01)
(1aR,5aR,5bS,6S,7S)-6,7-Di-tert-butoxy-5-oxo-pyrrolidino[1,2-b]isoxazolidino[4,5-c]tetrahydropyran (8) prepared by (1,3)-dipolar cycloaddition of the cyclic nitrone 6 derived from tartaric acid to 5,6-dihydro-2H-pyran-2-one (7) was transformed into indolizidine 11 via a sequence of reactions involving methanolysis of the lactone ring, intramolecular alkylation of the nitrogen atom
Rhodium-catalyzed asymmetric 1, 4-addition of arylboron reagents to α,β-unsaturated esters.
Takaya Y, et al.
Tetrahedron Asymmetry, 10(20), 4047-4056 (1999)
Fabrizio Carta et al.
Bioorganic & medicinal chemistry letters, 22(1), 267-270 (2011-12-06)
The inhibition of the zinc enzyme carbonic anhydrase (CA, EC 4.2.1.1) with (thio)coumarins has been recently reported (Maresca et al., J. Am. Chem. Soc. 2009, 131, 3057). Here we demonstrate that a series of γ- and δ-(thio)lactones also act as

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service