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| CAS No.: | 4519-40-8 |
|---|---|
| Name: | 2,3-Difluoroaniline |
| Article Data: | 7 |
| Molecular Structure: | |
|
|
|
| Formula: | C6H5F2N |
| Molecular Weight: | 129.109 |
| Synonyms: | Aniline,2,3-difluoro- (7CI,8CI);2,3-Difluorophenylamine;Benzenamine,2,3-difluoro-; |
| EINECS: | 224-847-2 |
| Density: | 1.289 g/cm3 |
| Boiling Point: | 176.6 °C at 760 mmHg |
| Flash Point: | 71.1 °C |
| Appearance: | clear light orange liquid |
| Hazard Symbols: |
 Xn,  Xi
|
| Risk Codes: | 20/21/22-36/37/38 |
| Safety: | 26-27-28-36/37/39 |
| Transport Information: | UN 2941 |
| PSA: | 26.02000 |
| LogP: | 2.12820 |
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- 4519-40-8
2,3-difluoroanilline
| Conditions | Yield |
|---|---|
| With palladium 10% on activated carbon; hydrogen; triethylamine In methanol at 50℃; for 3h; | 98% |
| Conditions | Yield |
|---|---|
| With palladium 10% on activated carbon; hydrogen; triethylamine In methanol at 50℃; for 2.5h; Temperature; | 93% |
- 4519-40-8
2,3-difluoroanilline
| Conditions | Yield |
|---|---|
| With hydrogenchloride In water for 1h; Reflux; | 89.1% |
- 4519-40-8
2,3-difluoroanilline
| Conditions | Yield |
|---|---|
| Stage #1: 1-(6-amino-2,3-difluorophenyl)pyrrolidine-2,5-dione With sulfuric acid; acetic acid; sodium nitrite at 5℃; for 0.5h; Stage #2: With ethanol; zinc for 1.5h; Reflux; | 83.6% |
| Multi-step reaction with 2 steps 1.1: sodium nitrite; sulfuric acid; acetic acid / 0.5 h / 5 °C 1.2: 1 h / 50 °C 2.1: hydrogenchloride / water / 1 h / Reflux View Scheme |
| Conditions | Yield |
|---|---|
| With ammonium hydroxide; cesium fluoride; copper(I) oxide 1.) N,N'-dimethylethyleneurea, 250 deg C (bomb), 12 h, 2.) 170 deg C (bomb), 24 h; Yield given. Multistep reaction. Further byproducts given. Yields of byproduct given; | |
| With ammonium hydroxide; cesium fluoride; copper(I) oxide 1.) N,N'-dimethylethyleneurea, 250 deg C (bomb), 12 h, 2.) 160 deg C (bomb), 24 h; Yield given. Multistep reaction. Further byproducts given. Yields of byproduct given; |
| Conditions | Yield |
|---|---|
| With hydrogen; sodium formate; palladium on charcoal |
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1-chloro-3,5-difluorobenzene
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3,4,5-trichloro-2,6-difluoronitrobenzene
- 136272-33-8
1,2,4-trichloro-3,5-difluoronitrobenzene
- 4519-40-8
2,3-difluoroanilline
| Conditions | Yield |
|---|---|
| With sulfuric acid; nitric acid; sodium acetate; chlorine; aluminium trichloride; palladium on charcoal In methanol; dichloromethane |
| Conditions | Yield |
|---|---|
| Multi-step reaction with 3 steps 1: iron; bromine / 4.83 h / 20 - 50 °C 2: sulfuric acid; nitric acid / water / 1.5 h / 20 - 35 °C 3: palladium 10% on activated carbon; hydrogen; triethylamine / methanol / 2.5 h / 50 °C View Scheme | |
| Multi-step reaction with 4 steps 1: iron; bromine / 4.83 h / 20 - 50 °C 2: sulfuric acid; nitric acid / water / 1.5 h / 20 - 35 °C 3: iron; calcium chloride; ethanol; water / 3.2 h / 55 °C 4: palladium 10% on activated carbon; hydrogen; triethylamine / methanol / 3 h / 50 °C View Scheme |
- 64695-78-9
1,2-difluoro-4,5-dibromobenzene
- 4519-40-8
2,3-difluoroanilline
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: sulfuric acid; nitric acid / water / 1.5 h / 20 - 35 °C 2: palladium 10% on activated carbon; hydrogen; triethylamine / methanol / 2.5 h / 50 °C View Scheme | |
| Multi-step reaction with 3 steps 1: sulfuric acid; nitric acid / water / 1.5 h / 20 - 35 °C 2: iron; calcium chloride; ethanol; water / 3.2 h / 55 °C 3: palladium 10% on activated carbon; hydrogen; triethylamine / methanol / 3 h / 50 °C View Scheme |
A
- 4519-40-8
2,3-difluoroanilline
| Conditions | Yield |
|---|---|
| With palladium 10% on activated carbon; hydrogen; triethylamine In methanol at 45℃; for 4.2h; Temperature; |
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Chemistry
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IUPAC Name: 2,3-Difluoroaniline
Molecular Formula: C6H5F2N
Molecular Weight: 129.11 g/mol
SMILES: c1(c(N)cccc1F)F
InChI: InChI=1/C6H5F2N/c7-4-2-1-3-5(9)6(4)8/h1-3H,9H2
EINECS: 224-847-2
Product Categories: Other fluorin-contained compounds; Fluorobenzene Series; Fluorobenzene; Amines and Anilines; Anilines, Aromatic Amines and Nitro Compounds; Aniline; Miscellaneous; Amines; C2 to C6; Nitrogen Compounds
Index of Refraction: 1.52
Molar Refractivity: 30.47 cm3
Molar Volume: 100.1 cm3
Polarizability: 12.08×10-24 cm3
Surface Tension: 37.2 dyne/cm
Density: 1.289 g/cm3
Flash Point: 71.1 °C
Enthalpy of Vaporization: 41.29 kJ/mol
Boiling Point: 176.6 °C at 760 mmHg
Vapour Pressure of 2,3-Difluoroaniline (CAS NO.4519-40-8): 1.08 mmHg at 25 °C
Uses
2,3-Difluoroaniline (CAS NO.4519-40-8) is used as intermediate for liquid crystal and drugs.
Safety Profile
Hazard Codes: 
Xn,
Xi
Risk Statements: 20/21/22-36/37/38
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-27-28-36/37/39-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S27:Take off immediately all contaminated clothing.
S28:After contact with skin, wash immediately with plenty of soap-suds.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S36:Wear suitable protective clothing.
RIDADR: 2941
WGK Germany: 3
Hazard Note: Irritant
HazardClass: 6.1
PackingGroup of 2,3-Difluoroaniline (CAS NO.4519-40-8): III
Specification
2,3-Difluoroaniline (CAS NO.4519-40-8), its Synonyms are 2,3-Difluoroaniline, 98% ; 2,3-Difluoroaniline 98% ; 2,3-Difluorophenylamine ; Benzenamine, 2,3-difluoro- . It is clear light orange liquid.