Materials for organic electroluminescent devices
An organic electronic device and organic technology, applied in the field of a method of matter, can solve the problems of incomparable, unable to provide very long life and high fluorescence efficiency polymers, short life of optoelectronic devices, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1 and 2
[0213] Examples 1 and 2: Preparation of monomers M1 and M2
Embodiment 1
[0215] Preparation of compound 9 (M1)
[0216] Compound 9 was prepared as follows:
[0217]
[0218] 1.1 Compound 2
[0219]
[0220] First, 100.0 g (0.2 mol) of compound 1 is introduced into 500 ml of nitrobenzene. 35 ml (0.8 mol) of nitric acid in 90 ml of glacial acetic acid was added dropwise at room temperature, and then the mixture was stirred at -70°C for another 3 hours. The reaction mixture was then poured into 1250 ml water and 2500 ml ethanol. The precipitated solid was filtered off with suction, washed in ethanol, and used in the subsequent reaction without additional purification. The yield was 98.0 g (0.19 mol, 90%).
[0221] 1.2 Compound 3
[0222]
[0223] First, 32.6 g (62.8 mmol) of Compound 2 was introduced into 650 ml of methanol, and 1.3 g of palladium on activated carbon was added. The reaction mixture was cooled to 0°C, and 5.2 g (138.5 mmol) of NaBH was added in portions 4 . The reaction solution was stirred overnight at room temperature. When the react...
Embodiment 2
[0237] Preparation of compound 11 (M2)
[0238] Compound 11 was prepared as follows:
[0239]
[0240] 2.1 Compound 11
[0241]
[0242] 50 ml of 2-ethoxyethanol was added to 0.61 g (0.80 mmol) of compound 10 and 1.0 g (1.59 mmol) of compound 7 under protective gas. The reaction mixture was heated to 115°C and stirred at this temperature for 4 days. After cooling to room temperature, 100 ml of a mixture of methanol and water (10 / 1) was added to the batch. The precipitated solid was filtered off with suction and washed with methanol. The product was purified by means of column chromatography (silica gel; eluent: toluene / heptane 6 / 4). The yield was 0.48 g (0.39 mmol, 48%).
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More