Products Categories
CAS No.: | 5418-51-9 |
---|---|
Name: | 2-Hydroxy-5-nitropyridine |
Article Data: | 38 |
Molecular Structure: | |
Formula: | C5H4N2O3 |
Molecular Weight: | 140.098 |
Synonyms: | 5-nitro-3H-pyridin-2-one;5-Nitropyridin-2-ol;5-Nitro-2-hydroxypyridine;2-Hydroxy-5-nitro pyridine;2(1H)-Pyridinone, 5-nitro-; |
EINECS: | 226-525-7 |
Density: | 1.44 g/cm3 |
Melting Point: | 188-191 °C(lit.) |
Boiling Point: | 334 °C at 760 mmHg |
Flash Point: | 155.8 °C |
Solubility: | Soluble in hot water and alkali liquor, Insoluble in most of organic solvents. |
Appearance: | light yellow to beige crystalline powder |
Hazard Symbols: | Xi |
Risk Codes: | 36/37/38 |
Safety: | 26-37/39-36 |
PSA: | 78.94000 |
LogP: | 1.21860 |
2-bromo-acrylic acid ethyl ester
nitromethane
orthoformic acid triethyl ester
5-nitro-2-hydroxypyridine
Conditions | Yield |
---|---|
Stage #1: 2-bromo-acrylic acid ethyl ester; nitromethane With 1,8-diazabicyclo[5.4.0]undec-7-ene at 40 - 45℃; for 6h; Stage #2: orthoformic acid triethyl ester With zinc(II) chloride at 90 - 95℃; for 6h; Stage #3: With ammonium hydroxide; ammonium chloride In ethanol at 50 - 55℃; for 4h; | 90.6% |
nitromethane
ethyl 2-chloroacrylate
orthoformic acid triethyl ester
5-nitro-2-hydroxypyridine
Conditions | Yield |
---|---|
Stage #1: nitromethane; ethyl 2-chloroacrylate With DBN at 60 - 65℃; for 4h; Stage #2: orthoformic acid triethyl ester With copper(l) chloride at 95 - 100℃; for 3h; Stage #3: With ammonium hydroxide; ammonium chloride In ethanol at 60 - 65℃; for 4h; | 89.9% |
Conditions | Yield |
---|---|
With hydrogenchloride; sodium nitrite In water at 0 - 6℃; for 0.666667h; Temperature; Concentration; | 88.02% |
With sulfuric acid; sodium nitrite at 0 - 20℃; | 77% |
With ammonium hydroxide; sodium nitrite at 0 - 10℃; Large scale; | 58.1% |
methyl 2-chloroacrylate
nitromethane
orthoformic acid triethyl ester
5-nitro-2-hydroxypyridine
Conditions | Yield |
---|---|
Stage #1: methyl 2-chloroacrylate; nitromethane With 1,8-diazabicyclo[5.4.0]undec-7-ene at 50 - 55℃; for 5h; Stage #2: orthoformic acid triethyl ester With zinc(II) chloride at 95 - 100℃; for 4h; Stage #3: With ammonium hydroxide; ammonium chloride In methanol at 50 - 55℃; for 6h; | 87.8% |
nitromethane
methyl 2-bromoacrylate
orthoformic acid triethyl ester
5-nitro-2-hydroxypyridine
Conditions | Yield |
---|---|
Stage #1: nitromethane; methyl 2-bromoacrylate With 1,8-diazabicyclo[5.4.0]undec-7-ene at 40 - 45℃; for 6h; Stage #2: orthoformic acid triethyl ester With tin(IV) chloride at 95 - 100℃; for 4h; Stage #3: With ammonium hydroxide; ammonium chloride In methanol at 50 - 55℃; for 4h; | 86.4% |
N,N-dimethyl-5-nitropyridin-2-amine
A
5-nitro-2-hydroxypyridine
B
2-(methylamino)-5-nitropyridine N1-oxide
Conditions | Yield |
---|---|
With 3-chloro-benzenecarboperoxoic acid In chloroform for 30h; Ambient temperature; | A 24% B 7% |
With 3-chloro-benzenecarboperoxoic acid In chloroform for 720h; Ambient temperature; | A 24% B 7% |
Conditions | Yield |
---|---|
With 15-crown-5; cumene hydroperoxide sodium salt In dichloromethane at 20℃; for 16h; | 17.5% |
With potassium hydroxide; water | |
With hydrogenchloride; water at 150℃; unter Druck; | |
With hydroxide In dimethylsulfoxide-d6; water-d2 Mechanism; |
5-nitro-pyridin-2-ylamine
A
2-Fluoro-5-nitropyridine
B
5-nitro-2-hydroxypyridine
Conditions | Yield |
---|---|
With hydrogen fluoride Behandeln der Reaktionsloesung mit Natriumnitrit; |
2-ethoxy-5-nitropyridine
5-nitro-2-hydroxypyridine
Conditions | Yield |
---|---|
With hydrogenchloride; water at 160 - 170℃; unter Druck; | |
With zinc(II) chloride at 160℃; |
Conditions | Yield |
---|---|
at 330℃; |
What can I do for you?
Get Best Price