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Name |
2(5H)-Furanone |
EINECS | 207-839-3 |
CAS No. | 497-23-4 | Density | 1.209 g/cm3 |
PSA | 26.30000 | LogP | 0.09940 |
Solubility | Immiscible with water. | Melting Point |
4-5 °C(lit.) |
Formula | C4H4O2 | Boiling Point | 203.7 °C at 760 mmHg |
Molecular Weight | 84.0746 | Flash Point | 87.3 °C |
Transport Information | N/A | Appearance | COA |
Safety | 26 | Risk Codes | 36/37/38 |
Molecular Structure | Hazard Symbols | Xi | |
Synonyms |
Crotonicacid, 4-hydroxy-, g-lactone (6CI,7CI);2-Buten-4-olide;2-Butenoic acid,4-hydroxy-, g-lactone;2-Oxo-2,5-dihydrofuran;4-Hydroxy-2-butenoic acid lactone;5-Oxo-2,5-dihydrofuran-3-yl ester;Isocrotonolactone;g-Hydroxycrotonic acid lactone; |
Article Data | 150 |
Conditions | Yield |
---|---|
With 5 wt% Pd nanoparticles loaded on phosphate anion exchanged [Mg6Al2(OH)16]CO3*xH2O; air at 50℃; under 760.051 Torr; for 6h; Reagent/catalyst; Irradiation; | 100% |
With Celite; silver carbonate In benzene for 2h; Heating; | 78% |
With allyl methyl carbonate; dihydridotetrakis(triphenylphosphine)ruthenium In toluene for 6h; Heating; | 77% |
at 30℃; for 24h; Nocardia corallina B-276; | 50% |
With sodium hydrogencarbonate; sodium carbonate at 20℃; for 3h; anodic oxidation on PbO2; |
Conditions | Yield |
---|---|
at 140 - 170℃; for 1h; | A 98% B 80% |
2-buten-4-olide
Conditions | Yield |
---|---|
With bromine In dichloromethane Ambient temperature; | 93% |
Conditions | Yield |
---|---|
Stage #1: but-3-enoic acid With Oxalyl bromide; dimethyl sulfoxide In dichloromethane at -10 - 20℃; Inert atmosphere; Stage #2: With potassium carbonate In dichloromethane; water for 6h; | 92% |
With ammonium iodide; toluene-4-sulfonic acid; 3-chloro-benzenecarboperoxoic acid In 2,2,2-trifluoroethanol; acetonitrile at 20℃; for 24h; | 63% |
With [bis(acetoxy)iodo]benzene; lithium bromide In methanol at 20℃; for 1h; | 60% |
1,4-butenediol
2-buten-4-olide
Conditions | Yield |
---|---|
With oxygen In toluene at 80℃; for 2.5h; | 91% |
With 1-methyl-1H-imidazole; [2,2]bipyridinyl; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; tetrakis(acetonitrile)copper(I) trifluoromethanesulfonate In acetonitrile at 22℃; for 6h; Reagent/catalyst; | 80% |
With [{Cu2(5-phenyl-2,8-bis(6′-bipyridinyl)-1,9,10-anthyridine)-(μ-ClO4)2}(PF6)2]; dihydrogen peroxide; sodium acetate In water at 70℃; for 12h; | 63% |
3-hydroxyoxolan-2-one
2-buten-4-olide
Conditions | Yield |
---|---|
With sulfuric acid; acetic anhydride at 0℃; for 0.25h; | 90% |
Stage #1: 3-hydroxyoxolan-2-one With sulfuric acid; acetic anhydride at 0℃; for 0.25h; Stage #2: With dmap at 100℃; for 3h; | 90% |
2-buten-4-olide
Conditions | Yield |
---|---|
With bromine In dichloromethane Ambient temperature; | 86% |
Conditions | Yield |
---|---|
With hydrogenchloride In water; acetone at 20℃; for 12h; | 86% |
Conditions | Yield |
---|---|
With hydrogenchloride In water; acetone at 20℃; for 16h; | 84% |
With trimethylsilyl bromide In dichloromethane at 20℃; |
2-ethoxy-2,5-dimethyl-2,5-dihydrofuran
2-buten-4-olide
Conditions | Yield |
---|---|
With sulfuric acid In water; acetone at 20℃; for 12h; | 82% |
Molecule structure of Butenolide (CAS NO.497-23-4):
IUPAC Name: 2H-Furan-5-one
Molecular Weight: 84.07336 g/mol
Molecular Formula: C4H4O2
Density: 1.208 g/cm3
Melting Point: 4-5 °C(lit.)
Boiling Point: 203.7 °C at 760 mmHg
Flash Point: 214 °F
Index of Refraction: 1.48
Molar Refractivity: 19.78 cm3
Molar Volume: 69.5 cm3
Surface Tension: 38.8 dyne/cm
Enthalpy of Vaporization: 44 kJ/mol
Vapour Pressure: 0.273 mmHg at 25 °C
Storage Temp.: 2-8 °C
XLogP3: -0.6
H-Bond Acceptor: 2
Exact Mass: 84.021129
MonoIsotopic Mass: 84.021129
Topological Polar Surface Area: 26.3
Heavy Atom Count: 6
Canonical SMILES: C1C=CC(=O)O1
InChI: InChI=1S/C4H4O2/c5-4-2-1-3-6-4/h1-2H,3H2
InChIKey: VIHAEDVKXSOUAT-UHFFFAOYSA-N
EINECS: 207-839-3
Product Categories of Butenolide (CAS NO.497-23-4): Heterocycles
Hazard Codes: Xi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany: 3
RTECS: LU3453000
F: 8-10
Hazard Note: Irritant
HS Code: 29322980
Butenolide (CAS NO.497-23-4) is also named as 2-Buten-4-olide ; 2-Butenoic acid gamma-lactone ; 2-Butenoic acid, 4-hydroxy-, gamma-lactone ; 2-Butenoic acid-gamma-lactone ; 2-Butenolide ; 2-Oxo-2,5-dihydrofuran ; 4-Hydroxy-2-butenoic acid lactone ; 4-Hydroxycrotonic acid gamma-lactone ; 5-17-09-00112 (Beilstein Handbook Reference) ; BRN 0383585 ; CCRIS 5722 ; Isocrotonolactone ; NSC 197009 ; alpha,beta-Crotonolactone ; delta,alpha,beta-Butenolide ; gamma-Crotolactone ; gamma-Hydroxycrotonic acid lactone .