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| | 4,6-DICHLORONICOTINONITRILE Basic information |
| Product Name: | 4,6-DICHLORONICOTINONITRILE | | Synonyms: | 4,6-DICHLORONICOTINONITRILE;3-Pyridinecarbonitrile, 4,6-dichloro-;3-Cyano-4,6-dichloropyridine;4,6-Dichloro-3-pyridinecarbonitrile;EOS-61391;4,6-Dichloronicotinonitrile 98%;4,6-dichloropyridine-3-carbonitrile | | CAS: | 166526-03-0 | | MF: | C6H2Cl2N2 | | MW: | 173 | | EINECS: | | | Product Categories: | nicotinonitrile | | Mol File: | 166526-03-0.mol |  |
| | 4,6-DICHLORONICOTINONITRILE Chemical Properties |
| Melting point | 133-135° | | Boiling point | 272.9±35.0℃ (760 Torr) | | density | 1.49±0.1 g/cm3 (20 ºC 760 Torr) | | Fp | 118.8±25.9℃ | | storage temp. | under inert gas (nitrogen or Argon) at 2-8°C | | pka | -1.94±0.10(Predicted) | | Appearance | White to off-white Solid | | InChI | InChI=1S/C6H2Cl2N2/c7-5-1-6(8)10-3-4(5)2-9/h1,3H | | InChIKey | VNRGFXKFARXGSX-UHFFFAOYSA-N | | SMILES | C1=NC(Cl)=CC(Cl)=C1C#N |
| Hazard Codes | T | | Risk Statements | 25 | | Safety Statements | 45 | | RIDADR | UN2811 | | HazardClass | IRRITANT | | HS Code | 2933399990 |
| | 4,6-DICHLORONICOTINONITRILE Usage And Synthesis |
| Uses | 4, 6-dichlorotinonitrile is a nitrile organic compound, which can be used as pharmaceutical intermediates. | | Synthesis | General procedure for the synthesis of 4,6-dichloronicotinonitrile from 4,6-dichloropyridine-3-amide: Pyridine (20.3 mL, 250 mmol) was slowly added to an acetonitrile (180 mL) suspension of 4,6-dichloronicotinamide (8.00 g, 41.9 mmol) at room temperature. Subsequently, phosphorous trichloride (11.7 mL, 126 mmol) was added dropwise over 3 minutes. The reaction mixture was heated to 60 °C with continuous stirring for 1.5 hours. Upon completion of the reaction, the solution was cooled to room temperature and carefully poured into 0.8 M aqueous sodium hydroxide solution (600 mL). Multiple extractions were performed with ethyl acetate (6 x 400 mL) and the organic phases were combined. The organic phase was dried with anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified by silica gel fast column chromatography (30% ethyl acetate/hexane as eluent) to afford 4,6-dichloronicotinonitrile as a light orange solid (6.41 g, 88% yield).1H NMR (400 MHz, CDCl3) δ 8.67 (s, 1H), 7.58 (s, 1H). | | References | [1] Patent: US2015/291629, 2015, A1. Location in patent: Paragraph 1175 |
| | 4,6-DICHLORONICOTINONITRILE Preparation Products And Raw materials |
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