Compound containing aza-spirofluorene and nitrogen six-membered heterocycle and application of compound to OLED (Organic Light Emitting Diode)
A technology of six-membered heterocycles and organic compounds, which is applied in OLED applications, in the field of compounds containing azaspirofluorene and nitrogen-containing six-membered heterocycles, can solve different problems and achieve difficult aggregation, power efficiency and external quantum Efficiency improvement, good film-forming effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0037] Example 1 Synthesis of Intermediate A:
[0038]
[0039] (1) Under a nitrogen atmosphere, weigh the raw material B and dissolve it in tetrahydrofuran, then add the raw material C and tetrakis(triphenylphosphine) palladium, stir the mixture, then add potassium carbonate aqueous solution, and bring the mixed solution of the above reactants to the reaction temperature Heat to reflux for 5-20 hours at 70-90°C. After the reaction, the mixture was cooled and added with water, and the mixture was extracted with dichloromethane. The extract was dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The residue obtained was purified by a silica gel column to obtain Intermediate I;
[0040] The molar ratio of the raw material B to the raw material C is 1:1.0 to 1.5, the molar ratio of tetrakis(triphenylphosphine) palladium to the raw material B is 0.001 to 0.02:1, and the molar ratio of potassium carbonate to the raw material B is 1.0 to 2.0 :1. The ra...
Example Embodiment
[0063] Example 2 Synthesis of Compound 2:
[0064]
[0065] In a 250mL three-necked flask, blow nitrogen, add 0.01mol of raw material A1, 150ml of THF, 0.015mol of intermediate A1, 0.0001mol of tetrakis(triphenylphosphine)palladium, stir, and then add 0.02mol of K 2 CO 3 Aqueous solution (2M), heated to 80°C, refluxed and reacted for 15 hours, sampling points, and the reaction was complete. Naturally cooled, extracted with 200ml of dichloromethane, separated into layers, the extract was dried with anhydrous sodium sulfate, filtered, the filtrate was rotary evaporated, and purified by silica gel column to obtain the target compound with an HPLC purity of 99.1% and a yield of 77.3%. Elemental analysis structure (molecular formula C 45 H 28 N 4 ): Theoretical value C, 86.51; H, 4.52; N, 8.97; Test value: C, 86.49; H, 4.53; N, 8.98. ESI-MS(m / z)(M + ): The theoretical value is 624.23, and the measured value is 624.58.
Example Embodiment
[0066] Example 3 Synthesis of Compound 4:
[0067]
[0068] In a 250mL three-necked flask, blow nitrogen, add 0.01mol of raw material A2, 150ml of THF, 0.015mol of intermediate A2, 0.0001mol of tetrakis(triphenylphosphine)palladium, stir, and then add 0.02mol of K 2 CO 3 Aqueous solution (2M), heated to 80°C, refluxed and reacted for 15 hours, sampling points, and the reaction was complete. Naturally cooled, extracted with 200ml of dichloromethane, separated into layers, the extract was dried with anhydrous sodium sulfate, filtered, the filtrate was rotary evaporated, and purified by silica gel column to obtain the target compound with an HPLC purity of 99.3% and a yield of 71.9%. Element analysis structure (molecular formula C 51 H 32 N 4 ): Theoretical value C, 87.40; H, 4.60; N, 7.99; Test value: C, 87.42; H, 4.61; N, 7.97. ESI-MS(m / z)(M + ): The theoretical value is 700.26, and the measured value is 700.63.
PUM
Property | Measurement | Unit |
---|---|---|
Thickness | aaaaa | aaaaa |
Thickness | aaaaa | aaaaa |
Thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap