2-hydroxycyclopent-2-en-1-one
- Product Name
- 2-hydroxycyclopent-2-en-1-one
- CAS No.
- 10493-98-8
- Chemical Name
- 2-hydroxycyclopent-2-en-1-one
- Synonyms
- 2-Cyclopenten-1-one, 2-hydroxy-;2-Hydroxy-2-cyclopenten-1-one;Einecs 234-020-8;2-Hydroxycyclopent-2-enone;2-Hydroxy-2-cyclopentenone;2-hydroxycyclopent-2-en-1-one;1-Hydroxy-1-cyclopenten-5-one
- CBNumber
- CB8942124
- Molecular Formula
- C5H6O2
- Formula Weight
- 98.1
- MOL File
- 10493-98-8.mol
2-hydroxycyclopent-2-en-1-one Property
- Melting point:
- 52-53℃
- Boiling point:
- 245℃
- Density
- 1.334
- Flash point:
- 101℃
- storage temp.
- 2-8°C
- solubility
- DMSO (Slightly), Methanol (Slightly)
- form
- Solid
- pka
- 8.90±0.20(Predicted)
- color
- Brown to Very Dark Brown
- Odor
- at 0.10 % in propylene glycol. maple caramel
- Odor Type
- caramellic
- InChI
- InChI=1S/C5H6O2/c6-4-2-1-3-5(4)7/h2,6H,1,3H2
- InChIKey
- WOPKYMRPOKFYNI-UHFFFAOYSA-N
- SMILES
- C1(=O)CCC=C1O
- LogP
- -0.290 (est)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P312Call a POISON CENTER or doctor/physician if you feel unwell.
P321Specific treatment (see … on this label).
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P337+P313IF eye irritation persists: Get medical advice/attention.
P362Take off contaminated clothing and wash before reuse.
P403+P233Store in a well-ventilated place. Keep container tightly closed.
P405Store locked up.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- H1874
- Product name
- 2-Hydroxycyclopent-2-en-1-one
- Purity
- min. 95.0 %
- Packaging
- 200MG
- Price
- $91
- Updated
- 2025/07/31
- Product number
- H1874
- Product name
- 2-Hydroxycyclopent-2-en-1-one
- Purity
- min. 95.0 %
- Packaging
- 1G
- Price
- $273
- Updated
- 2025/07/31
- Product number
- H954073
- Product name
- 2-Hydroxycyclopent-2-en-1-one
- Packaging
- 500mg
- Price
- $220
- Updated
- 2021/12/16
- Product number
- X8732
- Product name
- 2-Hydroxycyclopent-2-en-1-one
- Packaging
- 10g
- Price
- $1345
- Updated
- 2021/12/16
- Product number
- 119271
- Product name
- 2-Hydroxycyclopent-2-en-1-one
- Purity
- 95+%
- Packaging
- 5g
- Price
- $1350
- Updated
- 2021/12/16
2-hydroxycyclopent-2-en-1-one Chemical Properties,Usage,Production
Uses
2-Hydroxycyclopent-2-en-1-one is a useful compound for preparing natural flavors.
Synthesis
5057-98-7
10493-98-8
General procedure for the synthesis of 2-hydroxy-2-cyclopenten-1-one from cis-1,2-cyclopentanediol: cis-1,2-cyclopentanediol (0.424 mmol), Pt/C catalyst (1 or 5 mol% metal loading with respect to the diol), LiOH-H2O (1.0 equiv, 0.424 mmol) and solvent (2 mL, MeCN/H2O 1:1) were added to a 10 mL glass reactor equipped with a condenser and stirred at 60 °C for an appropriate time. The reaction progress was monitored by TLC. When product formation stopped, the catalyst was removed by filtration and washed with EtOAc (3 × 3 mL) to obtain a two-phase solution. The aqueous phase was acidified to pH 5 with 1 M HCl and the layers were separated. The aqueous layer was extracted twice with EtOAc (20 mL). All organic phases were combined, dried with MgSO4 and concentrated in vacuum. The crude product was purified by column chromatography (EtOAc/petroleum ether or MeOH/CH2Cl2) to afford the target product 2-hydroxy-2-cyclopenten-1-one, which is a keto-enol interconjugate isomer.
References
[1] Tetrahedron, 2014, vol. 70, # 22, p. 3608 - 3613
2-hydroxycyclopent-2-en-1-one Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 2-hydroxycyclopent-2-en-1-one manufacturers
- Product
- 2-hydroxycyclopent-2-en-1-one 10493-98-8
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 10000KGS
- Release date
- 2025-04-24