9H-carbazole, 1,3,6,8-tetrabromo-
1,3,6,8-tetrabromo-9H-carbazole
CAS: 55119-09-0
Molecular Formula: C12H5Br4N
9H-carbazole, 1,3,6,8-tetrabromo- - Names and Identifiers
| Name | 1,3,6,8-tetrabromo-9H-carbazole |
| Synonyms | 1,3,6,8-TetrabroMo- 1,3,6,8-tetrabromocarbazole 1,3,6,8-TetrabroMocarbazole 1,3,6,8-tetrabromo-9H-carbazole 9H-carbazole, 1,3,6,8-tetrabromo- 9H-Carbazole, 1,3,6,8-tetrabroMo- |
| CAS | 55119-09-0 |
| InChI | InChI=1/C12H5Br4N/c13-5-1-7-8-2-6(14)4-10(16)12(8)17-11(7)9(15)3-5/h1-4,17H |
9H-carbazole, 1,3,6,8-tetrabromo- - Physico-chemical Properties
| Molecular Formula | C12H5Br4N |
| Molar Mass | 482.79 |
| Density | 2.405±0.06 g/cm3(Predicted) |
| Melting Point | 227.0 to 231.0 °C |
| Boling Point | 540.4±45.0 °C(Predicted) |
| Flash Point | 280.6°C |
| Solubility | Chloroform (Very Slightly, Heated), Methanol (Slightly) |
| Vapor Presure | 3.38E-11mmHg at 25°C |
| Appearance | Solid |
| Color | White |
| pKa | 12.94±0.30(Predicted) |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
| Refractive Index | 1.816 |
9H-carbazole, 1,3,6,8-tetrabromo- - Reference Information
| structure & properties | carbazole derivatives are a very important molecular building unit in organic functional materials. Whether it is photovoltaic materials or organic electroluminescent diode display materials, this building unit is involved. Star-shaped molecules and dendrimers with carbazole and its derivatives as nuclei are everywhere. Carbazole and its derivatives have such a characteristic that there are 4 chemically active hydrogen atoms on the aromatic ring, which can be used as bonds and points for molecular construction. These four hydrogen atoms can react with nucleophiles or brominating reagents under certain chemical conditions to form new derivatives or intermediates such as 1,3,6, 8-tetrabromocarbazole. |
| preparation | using carbazole as starting material and reacting with N-bromosuccinimide to synthesize 1,3,6,8-tetrabromocarbazole compound: step 1: adding 5g (29.94mmol) of carbazole and 15mL of N,N-dimethylamide into a three-mouth flask filled with magnetic stirring under nitrogen atmosphere, after carbazole is completely dissolved, solution A with a concentration of 1.996mol/L is prepared, and the reaction system is reduced to 5 ℃ by ice water bath. N-bromosuccinimide (21.317g, 119.76mmol) is dissolved in 100mLN,N-dimethylamide, and solution B with a concentration of 1.1976mol/L is prepared. The dosage of N,N-dimethylamide in solution B and N in solution A are prepared, the dosage ratio of N-dimethylamide is 20:3; Step 2: Control the reaction temperature to 5 ℃, slowly add solution B to solution A with a constant pressure funnel; Step 3: After dropping, react at room temperature for 10 hours; Step 4: Pour 200ml of distilled water, immediately appear white precipitate, filter the white precipitate, wash three times, and dry at 100 ℃ to obtain the initial product; Step 5: the initial product in step 4 was purified by recrystallization with 50ml of dichloromethane to obtain a high purity 1,3,6, 8-tetrabromocarbazole compound. |
Last Update：2024-04-09 21:01:54
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