2-amino-5-bromo-3-methyl pyridine
2-Amino-5-bromo-3-methylpyridine
CAS: 3430-21-5
Molecular Formula: C6H7BrN2
2-amino-5-bromo-3-methyl pyridine - Names and Identifiers
| Name | 2-Amino-5-bromo-3-methylpyridine |
| Synonyms | 2-Amino-5-bromo-3-methyl 2-Amina-5-bromo-3-picoline 2-Amino-5-bromo-3-picoline 2-AMINO-5-BROMO-3-PICOLINE 5-Bromo-3-methylpyridin-2-amine 5-Bromo-3-methyl-2-pyridinamine 2-Amino-3-methyl-5-bromopyridine 2-AMINO-3-METHYL-5-BROMOPYRIDINE 2-Amino-5-bromo-3-methylpyridine 2-AMINO-5-BROMO-3-METHYLPYRIDINE 2-amino-5-bromo-3-methyl pyridine 2-amino-3-methyl-5-bromo pyridine 2-amino-5-bromo-3-methylpyridinium 2-AMINO-5-BROMO-3-PICOLINE (2-AMINO-5-BROMO-3-METHYLPYRIDINE) |
| CAS | 3430-21-5 |
| EINECS | 608-966-0 |
| InChI | InChI=1/C6H7BrN2/c1-4-2-5(7)3-9-6(4)8/h2-3H,1H3,(H2,8,9)/p+1 |
| InChIKey | KBLGGRWUEVCNPY-UHFFFAOYSA-N |
2-amino-5-bromo-3-methyl pyridine - Physico-chemical Properties
| Molecular Formula | C6H7BrN2 |
| Molar Mass | 187.04 |
| Density | 1.5672 (rough estimate) |
| Melting Point | 88-95°C(lit.) |
| Boling Point | 250.0±35.0 °C(Predicted) |
| Flash Point | 105°C |
| Solubility | Chloroform, Methanol |
| Vapor Presure | 0.0222mmHg at 25°C |
| Appearance | Yellow solid |
| Color | Yellow |
| BRN | 386426 |
| pKa | 4.96±0.49(Predicted) |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
| Sensitive | Hygroscopic |
| Refractive Index | 1.5500 (estimate) |
| MDL | MFCD00068232 |
2-amino-5-bromo-3-methyl pyridine - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S36/37 - Wear suitable protective clothing and gloves. |
| WGK Germany | 3 |
| HS Code | 29333999 |
| Hazard Class | IRRITANT |
2-amino-5-bromo-3-methyl pyridine - Reference Information
| Application | 2-amino-3-methyl-5-bromopyridine is a pyridine derivative widely distributed in nature. Many plant components, such as alkaloids, contain pyridine ring compounds in their structures. They are the basis for the production of many important compounds and are indispensable raw materials in the production of medicines, pesticides, dyes, surfactants, rubber additives, feed additives, food additives, adhesives, etc. |
| preparation | 2-amino -3-methylpyridine (10.8g,0.1mol) and acetic anhydride (12.3g,0.12mol) are added into a 250ml four-mouth flask, the oil bath is heated to reflux, and the reaction is tracked until the reaction is complete by thin layer chromatography. when the reaction solution is cooled to 20-25 ℃, bromine (17.6g,0.11mol), after adding, react at 50 ℃ for 3h, add water to the system until all solids are dissolved, slowly add 40ml of 40% sodium hydroxide solution dropwise, continue to react for 30min after adding, filter, dry, and recrystallize to obtain 2-amino -3-methyl -5-bromopyridine with a molar yield of 64%. |
Last Update：2024-04-09 21:01:54
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