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| | 2,6-Dichloropyridin-3-amine Basic information |
| | 2,6-Dichloropyridin-3-amine Chemical Properties |
| Melting point | 122 °C | | Boiling point | 268.76°C (rough estimate) | | density | 1.5462 (rough estimate) | | refractive index | 1.6300 (estimate) | | storage temp. | Keep in dark place,Sealed in dry,Room Temperature | | solubility | soluble in Methanol | | form | powder to crystal | | pka | -0.01±0.10(Predicted) | | color | White to Gray to Brown | | InChI | InChI=1S/C5H4Cl2N2/c6-4-2-1-3(8)5(7)9-4/h1-2H,8H2 | | InChIKey | MJVZSRZTBDMYLX-UHFFFAOYSA-N | | SMILES | C1(Cl)=NC(Cl)=CC=C1N | | CAS DataBase Reference | 62476-56-6(CAS DataBase Reference) | | NIST Chemistry Reference | 3-Amino-2,6-dichloropyridine(62476-56-6) |
| Hazard Codes | Xi,Xn | | Risk Statements | 36/37/38-43-41-22 | | Safety Statements | 26-36/37/39-37/39-36-28 | | RIDADR | 2811 | | WGK Germany | 3 | | HazardClass | IRRITANT | | PackingGroup | Ⅲ | | HS Code | 29333990 | | Storage Class | 6.1D - Non-combustible acute toxic Cat.3
toxic hazardous materials or hazardous materials causing chronic effects | | Hazard Classifications | Acute Tox. 3 Oral
Eye Dam. 1
Skin Sens. 1 |
| | 2,6-Dichloropyridin-3-amine Usage And Synthesis |
| Chemical Properties | crystal | | Uses | 2,6-Dichloro-3-pyridinamine is a biochemical reagent that can be used as a biological material or organic compound for life science related research. | | Definition | ChEBI: 2,6-Dichloropyridin-3-amine is a chloropyridine. | | Synthesis | General procedure for the synthesis of 2,6-dichloro-3-aminopyridine from 2,6-dichloro-3-nitropyridine: To a solution of 2,6-dichloro-3-nitropyridine (100 g, 0.518 mol) in acetic acid (1 L) was added powdered iron (86.49 g, 1.555 mol) in batches. The reaction mixture was stirred at room temperature for 6 hours. The progress of the reaction was monitored by thin layer chromatography (TLC) system (petroleum ether/ethyl acetate = 8:2) to confirm the completion of the reaction. After completion of the reaction, the reaction mixture was concentrated under high vacuum. The crude product was dissolved in water (1 L) and ethyl acetate (EtOAc, 2 L). The pH of the aqueous solution was adjusted to 6.5 using sodium carbonate (Na2CO3) powder under stirring.The mixture was filtered through diatomaceous earth (Celite), the organic layer was separated, dried with anhydrous sodium sulfate and concentrated to give 2,6-dichloro-3-aminopyridine (80 g, 95% yield) as a white solid.1H NMR (400 MHz, DMSO-d6) δppm : 7.14-7.20 (2H, m), 5.78 (2H, s). | | Purification Methods | Recrystallise it from water. [Beilstein 22 III/IV 4093.] | | References | [1] Patent: WO2014/22349, 2014, A1. Location in patent: Paragraph 00221-00222
[2] Molecules, 2007, vol. 12, # 2, p. 218 - 230
[3] Journal of Organic Chemistry, 2011, vol. 76, # 23, p. 9841 - 9844
[4] Patent: WO2016/103097, 2016, A1. Location in patent: Page/Page column 47
[5] Journal of Heterocyclic Chemistry, 1984, vol. 21, # 3, p. 673 - 679 |
| | 2,6-Dichloropyridin-3-amine Preparation Products And Raw materials |
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