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HomeProduct name listTetrahydro-4H-pyran-4-one

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
Tetrahydro-4H-pyran-4-one Structural

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  n20/D 1.452(lit.)
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)
ghs
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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