- 2-Chloro-4-nitropyridine
- 2-Chloro-4-nitropyridine 1-oxide
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Cas Database |
| Name |
2-Chloro-4-nitropyridine |
EINECS | -0 |
| CAS No. | 23056-36-2 | Density | 1.489 g/cm3 |
| PSA | 58.71000 | LogP | 2.16640 |
| Solubility | N/A | Melting Point |
52-56 °C |
| Formula | C5H3ClN2O2 | Boiling Point | 258.4 °C at 760 mmHg |
| Molecular Weight | 158.544 | Flash Point | 110.1 °C |
| Transport Information | N/A | Appearance | Light yellow powder |
| Safety | 26-36 | Risk Codes | 20/21/22-36/37/38 |
| Molecular Structure |
|
Hazard Symbols |
 Xn,  Xi
|
| Synonyms |
2-Chlor-4-nitropyridin;pyridine, 2-chloro-4-nitro-; |
Article Data | 5 |
2-Chloro-4-nitropyridine Synthetic route
- 14432-16-7
2-chloro-4-nitropyridine-N-oxide
- 23056-36-2
2-chloro-4-nitropyridine
| Conditions | Yield |
|---|---|
| With phosphorus trichloride In dichloromethaneu for 4h; Reflux; | 88% |
| With phosphorus trichloride In chloroform at 20℃; Heating / reflux; | 78% |
| With ethyl acetate; phosphorus trichloride |
| Conditions | Yield |
|---|---|
| 60% |
- 109-09-1
2-chloropyridine
- 23056-36-2
2-chloro-4-nitropyridine
| Conditions | Yield |
|---|---|
| Multi-step reaction with 3 steps 1: peroxyacetic acid; acetic acid 2: concentrated sulfuric acid; nitric acid 3: phosphorus (III)-chloride; ethyl acetate View Scheme |
- 2402-95-1
2-chloropyridine-N-oxide
- 23056-36-2
2-chloro-4-nitropyridine
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: concentrated sulfuric acid; nitric acid 2: phosphorus (III)-chloride; ethyl acetate View Scheme |
- 23056-36-2
2-chloro-4-nitropyridine
- 109-86-4
2-methoxy-ethanol
- 1067914-32-2
2-chloro-4-(2-methoxyethoxy)pyridine
| Conditions | Yield |
|---|---|
| With potassium tert-butylate at 0 - 20℃; for 16.5h; | 100% |
| With sodium hydride In tetrahydrofuran at 0 - 25℃; for 10h; | 98% |
| With potassium tert-butylate at 0 - 20℃; for 2h; | 97% |
| Conditions | Yield |
|---|---|
| Stage #1: 4-Phenylimidazole With sodium hydride In N,N-dimethyl-formamide; mineral oil at 20℃; for 0.25h; Stage #2: 2-chloro-4-nitropyridine In N,N-dimethyl-formamide; mineral oil at 20℃; for 0.166667h; | 100% |
- 23056-36-2
2-chloro-4-nitropyridine
- 7417-21-2
2-(3,4-dimethoxyphenyl)ethyl alcohol
- 1185999-53-4
2-chloro-4-(2-(3,4-dimethoxyphenyl)ethoxy)pyridine
| Conditions | Yield |
|---|---|
| With sodium hydride In paraffin oil (nujol); N,N-dimethyl-formamide at 0 - 20℃; for 1h; | 100% |
- 23056-36-2
2-chloro-4-nitropyridine
- 14704-41-7
3,5-bis(trifluoromethyl)pyrazole
| Conditions | Yield |
|---|---|
| In N-methyl-acetamide; hexane; ethyl acetate | 99% |
| Conditions | Yield |
|---|---|
| Stage #1: 2-chloro-4-nitropyridine; tributyl(1-ethoxyvinyl)stannane With bis-triphenylphosphine-palladium(II) chloride In N,N-dimethyl-formamide at 85℃; for 3h; Inert atmosphere; Stage #2: With hydrogenchloride In water at 20℃; Solvent; Temperature; Reagent/catalyst; | 99% |
- 23056-36-2
2-chloro-4-nitropyridine
- 14432-12-3
4-Amino-2-chloropyridine
| Conditions | Yield |
|---|---|
| With titanium for 0.25h; | 98% |
| With zinc borohydride pyridine complex In tetrahydrofuran for 2h; Heating; | 96% |
| With C36H56Cl3CrN2O; magnesium; 4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane In tetrahydrofuran at 60℃; for 24h; Inert atmosphere; chemoselective reaction; | 95% |
2-Chloro-4-nitropyridine Chemical Properties
Molecular Structure of 2-Chloro-4-nitropyridine (CAS NO.23056-36-2):
Molecular formula: C5H3ClN2O2.
Molecular Weight: 158.54
H bond acceptors: 4
H bond donors: 0
Freely Rotating Bonds: 1
Polar Surface Area: 58.71 Å2
Index of Refraction: 1.587
Molar Refractivity: 35.78 cm3
Molar Volume: 106.4 cm3
Surface Tension: 57.2 dyne/cm
Density: 1.489 g/cm3
Flash Point: 110.1 °C
Enthalpy of Vaporization: 47.6 kJ/mol
Boiling Point: 258.4 °C at 760 mmHg
Vapour Pressure: 0.0222 mmHg at 25°C
Melting point: 52-56 °C
Product Categories: Pyridine; Pyridines; Pyridine Derivertives; C5Heterocyclic Building Blocks; Halogenated Heterocycles; Heterocyclic Building Blocks
2-Chloro-4-nitropyridine 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: 26-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
WGK Germany: 3
HazardClass: Irritant
PackingGroup: III
2-Chloro-4-nitropyridine Specification
2-Chloro-4-nitropyridine , with CAS number of 23056-36-2, can be called pyridine, 2-chloro-4-nitro- ; 2-Chlor-4-nitropyridin . It is a light yellow powder, 2-Chloro-4-nitropyridine (CAS NO.23056-36-2) is used as intermediates in fields of medicine, materials of chemical industry and so on.
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