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About This Item
Empirical Formula (Hill Notation):
C5H8O
CAS Number:
Molecular Weight:
84.12
Beilstein:
103493
EC Number:
MDL number:
UNSPSC Code:
12352005
PubChem Substance ID:
NACRES:
NA.22
vapor density
2.9 (vs air)
Quality Level
Assay
97%
form
liquid
refractive index
n20/D 1.440 (lit.)
bp
86 °C (lit.)
mp
−70 °C (lit.)
density
0.922 g/mL at 25 °C (lit.)
SMILES string
C1COC=CC1
InChI
1S/C5H8O/c1-2-4-6-5-3-1/h2,4H,1,3,5H2
InChI key
BUDQDWGNQVEFAC-UHFFFAOYSA-N
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Application
3,4-Dihydro-2H-pyran can be used as a reactant to synthesize:
- Tetrahydropyranylated product from alcohols in the presence of phenolsulfonic acid-formaldehyde resin catalyst.
- Tetrahydropyran derivatives by reacting pyrazoles in the presence of trifluoroacetic acid.
- 1,2,3,4-Tetrahydroquinoline derivatives by cation-exchange resin catalyzed Domino reaction with aromatic amines.
- Tetrahydroquinolines from aryl azides in the presence of FeCl3-NaI.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Aquatic Chronic 3 - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2 - Skin Sens. 1B
Supplementary Hazards
Storage Class Code
3 - Flammable liquids
WGK
WGK 1
Flash Point(F)
5.0 °F - closed cup
Flash Point(C)
-15 °C - closed cup
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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