6,7-Dihydro-4(5H)-benzofuranone
- Product Name
- 6,7-Dihydro-4(5H)-benzofuranone
- CAS No.
- 16806-93-2
- Chemical Name
- 6,7-Dihydro-4(5H)-benzofuranone
- Synonyms
- 6,7-dihydrobenzofuran-4(5H)-one;6,7-Dihydro-4(5H)-be;7-Dihydro-4(5H)-benzofuranone;2,3-Dihydro-4(5H)-benzofuranone;6,7-DIHYDRO-4(5H)-BENZOFURANONE;6,7-dihydro-5H-benzofuran-4-one;4(5H)-Benzofuranone,6,7-dihydro-;6,7-dihydro-5H-1-benzofuran-4-one;6,7-DIHYDRO-1-BENZOFURAN-4(5H)-ONE;4-oxo-4,5,6,7-tetrahydrobenzofuran
- CBNumber
- CB7753154
- Molecular Formula
- C8H8O2
- Formula Weight
- 136.15
- MOL File
- 16806-93-2.mol
6,7-Dihydro-4(5H)-benzofuranone Property
- Melting point:
- 30-34 °C (lit.)
- Boiling point:
- 115-118 °C/16 mmHg (lit.)
- Density
- 1.162 g/mL at 25 °C (lit.)
- refractive index
- 1.53-1.532
- Flash point:
- >230 °F
- storage temp.
- Sealed in dry,Store in freezer, under -20°C
- form
- Liquid
- Specific Gravity
- 1.162
- color
- Clear yellow to brown
- InChI
- InChI=1S/C8H8O2/c9-7-2-1-3-8-6(7)4-5-10-8/h4-5H,1-3H2
- InChIKey
- DXWQOYPYNPSVRL-UHFFFAOYSA-N
- SMILES
- O1C2CCCC(=O)C=2C=C1
- CAS DataBase Reference
- 16806-93-2(CAS DataBase Reference)
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.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 476773
- Product name
- 6,7-Dihydro-4(5H)-benzofuranone
- Purity
- 98%
- Packaging
- 5g
- Price
- $149
- Updated
- 2023/06/20
- Product number
- D452065
- Product name
- 6,7-Dihydro-4(5H)-benzofuranone
- Packaging
- 10mg
- Price
- $45
- Updated
- 2021/12/16
- Product number
- AK-63547
- Product name
- 6,7-Dihydrobenzofuran-4(5H)-one
- Purity
- 98%
- Packaging
- 250mg
- Price
- $7
- Updated
- 2021/12/16
- Product number
- FD02000
- Product name
- 6,7-Dihydro-4(5H)-benzofuranone
- Packaging
- 2g
- Price
- $66
- Updated
- 2021/12/16
- Product number
- FD02000
- Product name
- 6,7-Dihydro-4(5H)-benzofuranone
- Packaging
- 5G
- Price
- $125
- Updated
- 2021/12/16
6,7-Dihydro-4(5H)-benzofuranone Chemical Properties,Usage,Production
Chemical Properties
clear yellow to brown low melting solid or liquid
Uses
6,7-Dihydro-4(5H)-benzofuranone may be used in the synthesis of furacridone ring skeleton.
Definition
ChEBI: 6,7-Dihydro-4(5H)-benzofuranone is a member of benzofurans.
Synthesis Reference(s)
Tetrahedron, 51, p. 3087, 1995 DOI: 10.1016/0040-4020(95)00070-O
Tetrahedron Letters, 27, p. 1127, 1986 DOI: 10.1016/S0040-4039(00)84195-7
General Description
6,7-Dihydro-4(5H)-benzofuranone is a benzofuran derivative that consists of fused benzene and furan ring. Its standard molar enthalpy of formation by static bomb calorimetry and standard molar enthalpy of vaporization using Calvet microcalorimetry has been measured. These values have been used to derive the standard molar enthalpy of formation in gaseous phase.
Synthesis
107-20-0
504-02-9
16806-93-2
Under argon protection, 1,3-cyclohexanedione (20.71 g, 0.18 mol) was dissolved in methanol (100 mL) and the solution was cooled to 0 °C. Subsequently, potassium hydroxide (12.2 g, 0.18 mol) was added to the solution and stirred continuously for 30 minutes at 0 °C. Next, 50% aqueous chloroacetaldehyde solution (26.3 mL, 0.203 mol) was slowly added. The reaction mixture was stirred overnight at room temperature. Upon completion of the reaction, the solution was acidified to pH < 7 with 1N hydrochloric acid and then extracted with ethyl acetate. The organic layers were combined, washed sequentially with water and saturated saline, and dried over anhydrous magnesium sulfate. Finally, the solvent was removed by concentration under reduced pressure to give the crude 6,7-dihydro-4(5H)-benzofuranone product (16.5 g), which was pure enough to be used directly in the next step of the reaction.
References
[1] Arkivoc, 2011, vol. 2011, # 9, p. 1 - 14
[2] Heterocycles, 2004, vol. 62, p. 807 - 813
[3] Bioorganic and Medicinal Chemistry, 2008, vol. 16, # 4, p. 1966 - 1982
[4] Journal of Organic Chemistry, 1988, vol. 53, # 17, p. 4135 - 4137
[5] Chemical and Pharmaceutical Bulletin, 1994, vol. 42, # 10, p. 2167 - 2169
6,7-Dihydro-4(5H)-benzofuranone Preparation Products And Raw materials
Raw materials
Preparation Products
6,7-Dihydro-4(5H)-benzofuranone Suppliers
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View Lastest Price from 6,7-Dihydro-4(5H)-benzofuranone manufacturers
- Product
- 6,7-Dihydro-4(5H)-benzofuranone 16806-93-2
- Price
- US $0.00-0.00/kg
- Min. Order
- 1kg
- Purity
- 98%
- Supply Ability
- 1Ton
- Release date
- 2022-09-27
- Product
- 6,7-Dihydro-4(5H)-benzofuranone 16806-93-2
- Price
- US $9.00/KG
- Min. Order
- 1KG
- Purity
- 99.8%
- Supply Ability
- 100tons
- Release date
- 2024-08-23
- Product
- 6,7-Dihydro-4(5H)-benzofuranone 16806-93-2
- Price
- US $80.00-800.00/kg
- Min. Order
- 10kg
- Purity
- 0.99
- Supply Ability
- 20tons
- Release date
- 2023-11-13