189367-54-2
9,9-Dihexyl-2,7-dibromofluorene
CAS: 189367-54-2
Molecular Formula: C25H32Br2
189367-54-2 - Names and Identifiers
| Name | 9,9-Dihexyl-2,7-dibromofluorene |
| Synonyms | K0087 9,9-Dihexyl-2,7-dibr 9,9-Dihexyl-2,7-dibromofluorene 2,7-DibroMo-9,9-dihexyl fluorine 2,7-dibromo-9,9-dihexyl-9H-fluorene 9 9-DIHEXYL-2 7-DIBROMOFLUORENE 97 9H-Fluorene, 2,7-dibroMo-9,9-dihexyl- 2,7-Dibromo-9,9-di(1-hexyl)-9H-fluorene 2,7-DibroMo-9,9-dihexylfluorene,9,9-dihexyl-2,7-dibroMofluorene |
| CAS | 189367-54-2 |
| InChI | InChI=1/C25H32Br2/c1-3-5-7-9-15-25(16-10-8-6-4-2)23-17-19(26)11-13-21(23)22-14-12-20(27)18-24(22)25/h11-14,17-18H,3-10,15-16H2,1-2H3 |
| InChIKey | OXFFIMLCSVJMHA-UHFFFAOYSA-N |
189367-54-2 - Physico-chemical Properties
| Molecular Formula | C25H32Br2 |
| Molar Mass | 492.33 |
| Density | 1.274±0.06 g/cm3(Predicted) |
| Melting Point | 67-71°C(lit.) |
| Boling Point | 0°C |
| Flash Point | 0°C |
| Water Solubility | Slightly soluble in water. |
| Vapor Presure | 1.76E-10mmHg at 25°C |
| Appearance | Bright yellow crystal |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.559 |
| MDL | MFCD03427215 |
| Physical and Chemical Properties | WGK Germany:3 |
| Use | Intermediate of polymeric light-emitting diodes. |
189367-54-2 - Risk and Safety
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| HS Code | 29039990 |
189367-54-2 - Reference Information
| preparation | the synthesis of 9,9-dihexyl -2,7-dibromofluorene was studied. using 2,7-dibromofluorene and brohexane as raw materials, the target product [1] was synthesized in one step. 9,9-dihexyl -2, 7-dibromofluorene synthesis reaction formula is as follows: Figure 19, 9-dihexyl -2, 7-dibromofluorene synthesis reaction formula diagram Under the protection of argon, 600ml of dimethyl sulfoxide is added to a 1000ml three-mouth flask equipped with mechanical stirring, and the temperature is heated to 65 ℃ ~ 70 ℃ under stirring, the temperature is kept for 2 hours, and the temperature is naturally reduced to 25 ℃ ~ 35 ℃, add 2, 7-dibromofluorene 40.0g, bromohexane 54.83g,TBAB 2.49g. At 25 ℃ ~ 35 ℃, 50% potassium hydroxide solution is added dropwise to the system. The dropwise process keeps the temperature of the system at 25 ℃ ~ 40 ℃. After the dropwise addition is completed, the reaction is stopped after the heat preservation reaction is continued at this temperature for 8 hours. The reaction solution is extracted with dichloroethane, then washed with water, dried with anhydrous magnesium sulfate, filtered, and recrystallized with acetone after concentration to obtain fine products. |
| Use | 9,9-dihexyl -2, 7-dibromofluorene is an intermediate of polymer light-emitting diodes (polymeric light-emitting diodes). With the advent of the rapid growth of the OLED display market, in recent years, fluorene organic small molecule materials have been easily modified, excellent in solubility, good film-forming performance, easy optical properties, good thermal stability, and high fluorescence efficiency. Thiophene and carbazole are coupled to form a large conjugated system by Suzuki reaction. |
Last Update：2024-04-10 22:29:15
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