| Identification | More | [Name]
2-Hydroxy-6-methyl-5-nitropyridine | [CAS]
28489-45-4 | [Synonyms]
2-HYDROXY-5-NITRO-6-PICOLINE
2-HYDROXY-6-METHYL-5-NITROPYRIDINE
6-HYDROXY-2-METHYL-3-NITROPYRIDINE
6-HYDROXY-3-NITRO-2-PICOLINE
6-METHYL-5-NITRO-2-PYRIDINOL
2-Hydorxy-5-Nitro-6-Picoline
6-METHYL-5-NITROPYRIDIN-2-OL
and6-HYDROXY-3-NITRO-2-PICOLINE
HCPY3002-hydroxy-5-nito-6-picoline
2-Hydroxy-6-methyl-5-nitropyridine, 98+%
6-Hydroxy-2-methyl-3-nitropyridine ,98% | [Molecular Formula]
C6H6N2O3 | [MDL Number]
MFCD00092010 | [Molecular Weight]
154.12 | [MOL File]
28489-45-4.mol |
| Chemical Properties | Back Directory | [Appearance]
Light yellow cryst | [Melting point ]
230-232 °C | [Boiling point ]
277.46°C (rough estimate) | [density ]
1.4564 (rough estimate) | [refractive index ]
1.5100 (estimate) | [storage temp. ]
Inert atmosphere,Room Temperature | [solubility ]
soluble in Dimethylformamide | [form ]
Crystalline Powder | [pka]
8.16±0.10(Predicted) | [color ]
Light brown to brown | [Detection Methods]
HPLC,NMR | [InChI]
InChI=1S/C6H6N2O3/c1-4-5(8(10)11)2-3-6(9)7-4/h2-3H,1H3,(H,7,9) | [InChIKey]
AJDDHNXZBGZBJN-UHFFFAOYSA-N | [SMILES]
C1(=O)NC(C)=C([N+]([O-])=O)C=C1 | [CAS DataBase Reference]
28489-45-4(CAS DataBase Reference) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S37/39:Wear suitable gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . | [HS Code ]
29333990 |
| Hazard Information | Back Directory | [Chemical Properties]
Light yellow cryst | [Uses]
2-Hydroxy-6-methyl-5-nitropyridine is a versatile building block that can be used to create a range of compounds, such as 3-Amino-2-methylpyridine, 6-Chloro-2-methyl-3-nitropyridine, etc.
| [Synthesis]
General procedure for the synthesis of 2-hydroxy-6-methyl-5-nitropyridine from 2-amino-5-nitro-6-methylpyridine: (b) 6-amino-3-nitro-2-methylpyridine (20 g, 0.131 mol) was suspended in a mixture of concentrated hydrochloric acid, H2SO4 (23.7 ml) and water (335 ml). H2SO4 (20 ml) was added slowly under cooling in an ice bath, at which point the amine was not completely dissolved. The suspension was poured into ice (100 g), followed by the addition of NaNO2 (13.53 g, 0.196 mol) solution in water (40 ml) drop by drop. Gas escaped during the reaction. The brown suspension was stirred at 10 °C for 1 h. Subsequently, it was filtered and the precipitate was washed with cold water. The resulting brown product was dried in a freeze dryer to give a final 15.78 g of 6-hydroxy-3-nitro-2-methylpyridine in 78% yield. | [References]
[1] Patent: WO2005/42464, 2005, A1. Location in patent: Page/Page column 33
[2] Journal of Fluorine Chemistry, 2011, vol. 132, # 8, p. 541 - 547
[3] Patent: CN105906621, 2016, A. Location in patent: Paragraph 0020
[4] Journal of the American Chemical Society, 1952, vol. 74, p. 3828,3830
[5] Yakugaku Zasshi, 1952, vol. 72, p. 434 |
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