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| CAS No.: | 1448-87-9 |
|---|---|
| Name: | 2-Chloroquinoxaline |
| Article Data: | 56 |
| Molecular Structure: | |
|
|
|
| Formula: | C8H5ClN2 |
| Molecular Weight: | 164.594 |
| Synonyms: | 2-Chloroquinoxaline;NSC 43553; |
| EINECS: | 215-905-8 |
| Density: | 1.35 g/cm3 |
| Melting Point: | 47-50 °C(lit.) |
| Boiling Point: | 252.919 °C at 760 mmHg |
| Flash Point: | 131.229 °C |
| Hazard Symbols: |
 T, Xn
|
| Risk Codes: | 25-36/37/38-22 |
| Safety: | 26-36/37/39-45 |
| Transport Information: | UN 2811 6.1/PG 3 |
| PSA: | 25.78000 |
| LogP: | 2.28320 |
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| Conditions | Yield |
|---|---|
| With pyridine; trichlorophosphate at 160℃; for 2h; Autoclave; neat (no solvent); | 94% |
| With dmap; thionyl chloride; bis(trichloromethyl) carbonate for 6.5h; Reflux; Green chemistry; | 94% |
| With P,P-dichlorophenylphosphine oxide at 110℃; for 12h; Inert atmosphere; | 81% |
| Conditions | Yield |
|---|---|
| With trichlorophosphate In toluene for 1h; Reflux; | 93% |
| With N-chloro-succinimide; triphenylphosphine In 1,4-dioxane for 4h; Heating; | 88% |
| With trichloroisocyanuric acid; triphenylphosphine In toluene for 4h; Heating; | 77% |
| Conditions | Yield |
|---|---|
| at 390 - 400℃; | A 12% B 88% |
- 18671-97-1
2,6-dichloroquinoxaline
- 1448-87-9
2-chloroquinoxaline
| Conditions | Yield |
|---|---|
| With 18-crown-6 ether; 4 A molecular sieve; cesium fluoride In tetrahydrofuran for 20h; Product distribution; Ambient temperature; other 6-substituted 2-chloroquinoxalines; var. temp., reaction time and stoichiometry of reagents; | 87% |
| Conditions | Yield |
|---|---|
| With sodium dimethyl phosphonate In tetrahydrofuran at 20℃; for 4h; | 85% |
- 120569-15-5
C22H15N3O2
A
- 1448-87-9
2-chloroquinoxaline
B
- 119-61-9
benzophenone
C
- 67-72-1
hexachloroethane
D
- 983-79-9
benzophenone azine
| Conditions | Yield |
|---|---|
| With tetrachloromethane Ambient temperature; Irradiation; Yields of byproduct given; | A 74% B n/a C n/a D n/a |
| Conditions | Yield |
|---|---|
| With N,N-dimethyl-formamide; trichlorophosphate In dichloromethane at 0 - 25℃; Inert atmosphere; regioselective reaction; | 63% |
| With trichlorophosphate |
- 1448-87-9
2-chloroquinoxaline
| Conditions | Yield |
|---|---|
| With lithium chloride In 1,4-dioxane at 80℃; for 24h; Inert atmosphere; Sealed tube; regioselective reaction; | 60% |
A
- 1448-87-9
2-chloroquinoxaline
| Conditions | Yield |
|---|---|
| at 450℃; under 0.01 Torr; | A 54% B n/a |
| at 450℃; under 0.01 Torr; | A n/a B 54% |
- 1196-57-2
quinoxalin-2(1)-one
A
- 1448-87-9
2-chloroquinoxaline
B
- 877078-00-7
2-chloroquinoxaline-6-sulfonyl chloride
| Conditions | Yield |
|---|---|
| With chlorosulfonic acid; thionyl chloride at 110℃; for 11h; | A 8.5 g B 44% |
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Chemistry
Molecular Structure:
Molecular Formula: C8H5ClN2
Molecular Weight: 164.5917
IUPAC Name: 2-Chloroquinoxaline
Synonyms of 2-Chloroquinoxaline (CAS NO.1448-87-9): EINECS 215-905-8 ; 2-Chloroquinoxaline ,99% ; Chloroquinoxaline
CAS NO: 1448-87-9
Product Categories: Building Blocks ; Halogenated Heterocycles ; Heterocyclic Building Blocks ; Quinoxalines ; QuinoxalinesHeterocyclic Building Blocks
Melting point: 47-50 °C
Index of Refraction: 1.662
Molar Refractivity: 45.17 cm3
Molar Volume: 121.9 cm3
Surface Tension: 57.1 dyne/cm
Density: 1.349 g/cm3
Flash Point: 131.2 °C
Enthalpy of Vaporization: 47.05 kJ/mol
Boiling Point: 252.9 °C at 760 mmHg
Vapour Pressure: 0.03 mmHg at 25°C
Uses
2-Chloroquinoxaline (CAS NO.1448-87-9) is used for pharmaceutical and agricultural chemical intermediates.
Safety Profile
Hazard Codes of 2-Chloroquinoxaline (CAS NO.1448-87-9): 
T,
Xn
Risk Statements: 25-36/37/38-22
R25: Toxic if swallowed.
R36/37/38: Irritating to eyes, respiratory system and skin.
R22: Harmful if swallowed.
Safety Statements: 26-36/37/39-45
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection.
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: UN 2811 6.1/PG 3
WGK Germany: 3
HazardClass: IRRITANT