23L
2,3-dimethylpyridine
CAS: 583-61-9
Molecular Formula: C7H9N
23L - Names and Identifiers
| Name | 2,3-dimethylpyridine |
| Synonyms | LUT 23L 2,3-LUTIDINE 2,3-Lutidine (8CI) 2,3-dimethylpyridine a,b-Dimethylpyridine 2,3-DIMETHYL PYRIDINE pyridine,2,3-dimethyl- 2,3- twoMethylpyridine 2,3-dimethyl-pyridin 2,3-dimethyl pyridine Pyridine, 2,3-dimethyl- (9CI) 2,3-DIMETHYLPYRIDINE(2,3-LUTIDINE) |
| CAS | 583-61-9 |
| EINECS | 209-514-1 |
| InChI | InChI=1/C22H17IN2/c23-21-24-16-17-25(21)22(18-10-4-1-5-11-18,19-12-6-2-7-13-19)20-14-8-3-9-15-20/h1-17H |
| InChIKey | HPYNZHMRTTWQTB-UHFFFAOYSA-N |
23L - Physico-chemical Properties
| Molecular Formula | C7H9N |
| Molar Mass | 107.15 |
| Density | 0.945 g/mL at 25 °C (lit.) |
| Melting Point | -15 °C (lit.) |
| Boling Point | 162-163 °C (lit.) |
| Flash Point | 122°F |
| Water Solubility | 95 g/L (26 ºC) |
| Vapor Presure | 2.01E-12mmHg at 25°C |
| Appearance | Liquid |
| Color | Clear colorless to slightly yellow |
| BRN | 106418 |
| pKa | 6.57(at 25℃) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | n20/D 1.508(lit.) |
| Physical and Chemical Properties | Boiling Point: 161 ℃ Melting Point:-17 ℃ |
23L - Risk and Safety
| Risk Codes | R10 - Flammable R22 - Harmful if swallowed R37/38 - Irritating to respiratory system and skin. R41 - Risk of serious damage to eyes R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S39 - Wear eye / face protection. S36/37 - Wear suitable protective clothing and gloves. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | UN 1993 3/PG 3 |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29333990 |
| Hazard Class | 6.1 |
| Packing Group | II |
23L - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| introduction | 2,3-dimethylpyridine is a pyridine derivative, which has a colorless or light yellow liquid appearance at normal temperature and pressure and can be used as an intermediate in organic synthesis and an acid binding agent. 2, 3-dimethylpyridine is a commercial organic reagent. It has good solubility in common organic solvents such as dichloromethane, ethyl acetate, and dimethyl sulfoxide, but it has poor solubility in water. |
| Use | 2,3-dimethylpyridine is a commercial organic reagent, commonly used as an organic base in acylation reaction as an acid binding agent. The nitrogen atom in 2, 3-dimethylpyridine can be oxidized to the corresponding nitrogen oxide under the action of an appropriate oxidant such as m-chloroperoxybenzoic acid. |
| Synthesis method | The synthesis of 2,3-dimethylpyridine. The synthesis method in the literature starts from 2-bromo-3-methylpyridine. Under strong alkaline conditions, the bromine is removed to obtain the corresponding organolithium reagent, and then the target product of dehalomethylation on the pyridine ring can be obtained by adding methyl iodide. It is worth noting that this route is carried out using flow synthetic chemistry. |
Last Update：2024-04-10 22:29:15
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