Compound used as electrochromic material as well as preparation method and application thereof
A technology of electrochromic materials and electrochromic devices, applied in the direction of color-changing fluorescent materials, chemical instruments and methods, organic chemistry, etc., can solve the problems of density change, separation of color-changing materials, easy aging of color-changing materials, etc., and achieve improved stability , to avoid the effect of density changes
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Embodiment 1
[0049] In a 500ml round-bottomed flask protected by nitrogen, 18g (0.1mol) of phenazine was added to 120ml of anhydrous tetrahydrofuran (THF), and 61.6ml of cyclohexane containing 20% isopropyllithium was added dropwise under vigorous stirring- Diethyl ether solution (volume ratio of cyclohexane: ether = 7:3) was added dropwise within 15 minutes, the reaction temperature was -24°C (ice-salt bath), the reaction time was 2 hours, and then the temperature was raised to room temperature. At room temperature, 60.2 ml of dibromopentane was added dropwise to the reaction flask, and after the dropwise addition, the temperature was raised to 45° C. After 10 hours of reaction, 200 ml of water was added. Then use a separatory funnel to separate the organic phase, wash with 100ml of water three times, then add anhydrous magnesium sulfate to dry, and conduct fractional distillation under reduced pressure to fractionate unreacted dibromopentane. The remaining oil was dissolved in 400ml of...
Embodiment 2
[0055] In a 500ml round bottom flask protected by nitrogen gas, add 18g (0.1mol) phenazine to 120ml anhydrous tetrahydrofuran (THF), and add dropwise 60ml of cyclohexane-ether containing 20% isobutyllithium under vigorous stirring The solution (volume ratio of cyclohexane:ether = 7:3) was added dropwise within 15 minutes, the reaction temperature was -24°C (ice-salt bath), the reaction time was 2 hours, and then the temperature was raised to room temperature. At room temperature, 60 ml of dibromohexane was added dropwise to the reaction bottle, and the temperature was raised to 45° C. after the dropwise addition was completed. After reacting for 10 hours, 200ml of water was added. Then use a separatory funnel to separate the organic phase, wash with 100ml of water three times, then add anhydrous magnesium sulfate to dry, and conduct fractional distillation under reduced pressure to fractionate unreacted dibromohexane. The remaining oil was dissolved in 400ml of hot ethanol,...
Embodiment 3
[0061] In a 500ml round-bottomed flask protected by nitrogen, 18g (0.1mol) of phenazine was added to 120ml of anhydrous tetrahydrofuran (THF), and 60ml of cyclohexane containing 20% sec-butyllithium was added dropwise under vigorous stirring- Diethyl ether solution (volume ratio of cyclohexane: ether = 7:3) was added dropwise within 15 minutes, the reaction temperature was -24°C (ice-salt bath), the reaction time was 2 hours, and then the temperature was raised to room temperature. At room temperature, 60 ml of dibromohexane was added dropwise to the reaction bottle, and the temperature was raised to 45° C. after the dropwise addition was completed. After reacting for 10 hours, 200ml of water was added. Then use a separatory funnel to separate the organic phase, wash with 100ml of water three times, then add anhydrous magnesium sulfate to dry, and conduct fractional distillation under reduced pressure to fractionate unreacted dibromohexane. The remaining oil was dissolved i...
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