Name | 5-bromo-2-methoxy-3-nitro-pyridine |
Synonyms | 2-Methoxy-3-Nitro-5-Bromopyridine 2-METHOXY-3-NITRO-5-BROMOPYRIDINE 5-Bromo-2-methoxy-3-nitropyridine 5-BROMO-2-METHOXY-3-NITRO-PYRIDINE 5-bromo-2-methoxy-3-nitro-pyridine Pyridine,5-bromo-2-methoxy-3-nitro- pyridine, 5-bromo-2-methoxy-3-nitro- |
CAS | 152684-30-5 58819-77-5 |
InChI | InChI=1/C6H5BrN2O3/c1-12-6-5(9(10)11)2-4(7)3-8-6/h2-3H,1H3 |
InChIKey | YRVHFGOAEVWBNS-UHFFFAOYSA-N |
Molecular Formula | C6H5BrN2O3 |
Molar Mass | 233.02 |
Density | 1.730±0.06 g/cm3(Predicted) |
Melting Point | 88.0 to 92.0 °C |
Boling Point | 282.0±35.0 °C(Predicted) |
Flash Point | 124.339°C |
Vapor Presure | 0.006mmHg at 25°C |
pKa | -2.99±0.20(Predicted) |
Storage Condition | Inert atmosphere,Room Temperature |
Refractive Index | 1.587 |
MDL | MFCD07374968 |
Hazard Symbols | Xi - Irritant |
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
WGK Germany | 3 |
Hazard Class | IRRITANT |
use | 5-bromo -2-methoxy -3-nitropyridine has the characteristics of easy structural modification, making it the most commonly used molecular group for constructing hole transport materials, host materials and luminescent materials. 5-Bromo-2-methoxy-3-nitropyridine not only has a large π-electron conjugation system, strong electron transfer ability and rigid fused ring structure, but also easy to introduce a variety of functions on its pyridine ring. The group, which makes 5-bromo-2-methoxy-3-nitropyridine have a very wide range of applications in OLED devices, there are significant performance characteristics in different functional layers, so the research in related fields is very active and many important research results have been achieved. |
Synthesis method | Add 25% wt sodium methoxide methanol solution (2.1 L) to the 5-bromo -2-chloro -3-nitropyridine (1.70kg) suspension in methanol (6.6 L), and stir under 0-5°C nitrogen. Stir the reaction mixture at 5-10°C for 2.75 hours, and then add water (8.5 L). The reaction mixture was cooled to 20-25°C. Then the mixture is concentrated under vacuum, the resulting suspension is filtered, washed with water (8.5L, then 2 x 4.25 L), and the solid is dried under vacuum to obtain the title compound 5-bromo-2-methoxy-3-nitropyridine. White solid, yield (1.37kg). 1H nuclear magnetic resonance (400MHz, chloroform-d)δ(ppm)8.46(s,1H),8.40(s,1 H). Figure 5-Bromo-2-methoxy-3-nitropyridine synthesis route |