Red organic electrophosphorescent material iridium metal complex, preparation method thereof, and organic electroluminescent device
A technology of iridium metal complexes and phosphorescent materials, applied in the field of organic electroluminescence, can solve the problems of backwardness and rarely achieve the color purity of dark red and dark green light, and achieve high luminous efficiency and good energy transmission efficiency , the preparation process is easy to control the effect
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Embodiment 1
[0069] Example 1: A red-light organic electrophosphorescent material iridium metal complex bis[3,4-diphenylcinnoline-N,C 2 '] (acetylacetonate) iridium, as shown in the following structural formula:
[0070]
[0071] The preparation method of the above-mentioned red light organic electrophosphorescent material iridium metal complex comprises the following steps:
[0072] (1) Provide compound A and Grignard reagent B1 represented by the following structural formula respectively:
[0073]
[0074] (2) Synthesis of 1,2-diphenyl-1-(2'-aminophenyl)ethanol
[0075]
[0076] Under nitrogen protection, 1.97g (10mmol) 2-aminobenzophenone (compound A) was dissolved in 60mL of anhydrous ether, and 1.10g (45.8mmol) magnesium particles, 5.51g (43.5mmol) benzyl Grignard reagent B1 solution prepared by chlorine (compound D1) and 30 mL of anhydrous ether; reflux for 45 min after the dropwise addition, add excess methanol and ammonium nitrate to quench the reaction, wash with water,...
Embodiment 2
[0106] Example 2: A red-light organic electrophosphorescent material iridium metal complex bis[3-(6'-methoxyphenyl)-4-phenylcinnoline-N,C 2 '] (acetylacetonate) iridium, as shown in the following structural formula:
[0107]
[0108] The preparation method of the above-mentioned red light organic electrophosphorescent material iridium metal complex comprises the following steps:
[0109] (1) Provide compound A and Grignard reagent B2 represented by the following structural formula respectively:
[0110]
[0111] (2) Synthesis of 1-phenyl-1-(2'-aminophenyl)-2-(2'-methoxyphenyl)ethanol
[0112]
[0113] Under nitrogen protection, 1.97g (10mmol) 2-aminobenzophenone was dissolved in 60mL of anhydrous ether, and 1.06g (43.5mmol) magnesium particles, 6.81g (43.5mmol) o-methoxybenzyl Grignard reagent B2 solution prepared by chlorine and 30 mL of anhydrous ether; reflux for 40 min after the dropwise addition, add excess methanol and ammonium nitrate to quench the reaction, ...
Embodiment 3
[0142] Example 3: A red-light organic electrophosphorescent material iridium metal complex bis[3-(5'-ethoxyphenyl)-4-phenylcinnoline-N,C 2 '] (acetylacetonate) iridium, as shown in the following structural formula:
[0143]
[0144] The preparation method of the above-mentioned red light organic electrophosphorescent material iridium metal complex comprises the following steps:
[0145] (1) Provide compound A and Grignard reagent B3 represented by the following structural formula respectively:
[0146]
[0147] (2) Synthesis of 1-phenyl-1-(2'-aminophenyl)-2-(3'-ethoxyphenyl)ethanol
[0148]
[0149] Under nitrogen protection, 1.97g (10mmol) 2-aminobenzophenone was dissolved in 60mL of anhydrous ether, and 1.10g (45.8mmol) magnesium particles, 7.42g (43.5mmol) m-ethoxybenzyl Grignard reagent B3 solution prepared by chlorine and 30 mL of anhydrous ether; reflux for 50 minutes after the dropwise addition, add excess methanol and ammonium nitrate to quench the reaction,...
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