2-Bromo-3-pyridinamine
3-Amino-2-bromopyridine
CAS: 39856-58-1
Molecular Formula: C5H5BrN2
2-Bromo-3-pyridinamine - Names and Identifiers
| Name | 3-Amino-2-bromopyridine |
| Synonyms | TIMTEC-BB SBB005539 2-BROMO-PYRIDINEAMINE 2-bromopyridin-3-amine 2-Bromo-3-pyridinamine 2-Bromo-3-aminopyridine 2-BROMOPYRIDINE-3-AMINE 2-BROMO-3-AMINOPYRIDINE 3-AMINO-2-BROMOPYRIDINE 3-Amino-2-bromopyridine 2-BROMO-PYRIDIN-3-YLAMINE |
| CAS | 39856-58-1 |
| EINECS | 626-782-9 |
| InChI | InChI=1/C5H5BrN2/c6-5-4(7)2-1-3-8-5/h1-3H,7H2 |
| InChIKey | HKDVVTLISGIPFE-UHFFFAOYSA-N |
2-Bromo-3-pyridinamine - Physico-chemical Properties
| Molecular Formula | C5H5BrN2 |
| Molar Mass | 173.01 |
| Density | 1.710±0.06 g/cm3(Predicted) |
| Melting Point | 76-80°C |
| Boling Point | 292.5±20.0 °C(Predicted) |
| Flash Point | 130.7°C |
| Water Solubility | Slightly soluble in water. |
| Vapor Presure | 0.00182mmHg at 25°C |
| Appearance | Yellow to brown powder |
| Color | Beige to dark brown |
| BRN | 109830 |
| pKa | 1.72±0.10(Predicted) |
| Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
| Refractive Index | 1.636 |
| MDL | MFCD00234064 |
2-Bromo-3-pyridinamine - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R37/38 - Irritating to respiratory system and skin. R41 - Risk of serious damage to eyes R36/37/38 - 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. S36/39 - S37/39 - Wear suitable gloves and eye/face protection |
| UN IDs | UN 2811 6.1/PG 3 |
| WGK Germany | 3 |
| HS Code | 29333990 |
| Hazard Class | IRRITANT |
| Packing Group | III |
2-Bromo-3-pyridinamine - Reference Information
| Use | 2-bromo-3-aminopyridine is a palladium-catalyzed alkynylation-heterocycle by palladium-catalyzed (amino) bromopyridine/bromoaniline and alkynes, a useful reagent for the synthesis of pyrrolo [3,2-b] pyridine/indole in one pot. |
| Preparation | 2-bromo-3-aminopyridine can be obtained from 3-aminopyridine as raw material through NBS bromination. Take 47 grams (0.5 mol) 3-aminopyridine dissolved in 750 ml (15 times the amount) CH2Cl2, a 1-liter three-mouth bottle, use dry ice and ethanol to control the temperature -10 ℃ (internal temperature), add 89 grams (0.5 mol ) NBS into it in batches for about 15 minutes, and the raw materials almost disappear after 15 minutes of reaction, add water and separate the liquid, the aqueous phase is extracted with dichloromethane, the organic phase is combined to dry, spin dry, using dichloromethane/petroleum ether = 1:3 as the eluent to get 25 grams of 2-brom-3-aminopyridine. |
Last Update：2024-04-09 02:00:02
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