198242
Tetrahydro-4H-pyran-4-one
99%
Synonym(s):
4-Oxotetrahydropyran
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About This Item
Empirical Formula (Hill Notation):
C5H8O2
CAS Number:
Molecular Weight:
100.12
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
249-967-2
Beilstein/REAXYS Number:
106463
MDL number:
Assay:
99%
Form:
liquid
assay
99%
form
liquid
refractive index
n20/D 1.452 (lit.)
bp
166-166.5 °C (lit.)
density
1.084 g/mL at 25 °C (lit.)
functional group
ether, ketone
InChI key
JMJRYTGVHCAYCT-UHFFFAOYSA-N
InChI
1S/C5H8O2/c6-5-1-3-7-4-2-5/h1-4H2
SMILES string
O=C1CCOCC1
Quality Level
Related Categories
signalword
Warning
hcodes
pcodes
Hazard Classifications
Flam. Liq. 3
Storage Class
3 - Flammable liquids
wgk
WGK 3
flash_point_f
131.0 °F - closed cup
flash_point_c
55 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Regulatory Information
危险化学品
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Synthesis, 672-672 (1994)
Tetrahedron Letters, 33, 7701-7701 (1992)
Kun Huang et al.
The Journal of organic chemistry, 71(21), 8320-8323 (2006-10-10)
As the first example for the synthesis of optically active alpha-hydroxyaldehydes and alpha-hydroxyketones in ionic liquids, we applied RTILs into L-proline catalyzed direct enantioselective alpha-aminoxylation of both aldehydes and ketones successfully. This protocol features a number of advantages, such as
R K Anderson et al.
The Journal of antibiotics, 46(2), 331-342 (1993-02-01)
Syntheses are described for penicillins (4b approximately 4i, 5a and 5b) which possess a 6 beta-(2-heteroaryl-3-substituted)-propenamido side-chain of fixed geometry. In vitro results for these compounds against a range of Gram-positive and Gram-negative bacteria showed in most cases good stability
Bryan Ringstrand et al.
Beilstein journal of organic chemistry, 7, 386-393 (2011-04-23)
The methodology to prepare 3-substituted 1,5-dibromopentanes I and their immediate precursors, which include 3-substituted 1,5-pentanediols VII or 4-substituted tetrahydropyrans VIII, is surveyed. Such dibromides I are important intermediates in the preparation of liquid crystalline derivatives containing 6-membered heterocyclic rings. Four
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