An exciplex, its application and an organic electroluminescent device using the exciplex
A technology of exciplexes and organic electronic devices, which can be applied in the fields of electric solid devices, organic chemistry, electrical components, etc., and can solve the problems of reducing the transmission capacity of exciplexes
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Synthetic example 6
[0077] Synthesis Example 6: Synthesis of Donor A27
[0078]
[0079]Under nitrogen protection, add A27-1 (2mmol), 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolane-2- Base)-tetraphenylsilane (2mmol), use 1:3 ethanol / toluene (100ml) as solvent, add 9% potassium carbonate aqueous solution (9ml), and tetrakistriphenylphosphine palladium (46mg, 0.04mmol) as catalyst , heated to reflux for 12 hours, cooled and then filtered to rinse the filter cake with ethanol to obtain the intermediate product of chemical formula A27-2, which was directly used in the next reaction.
[0080]
[0081] Put A27-2 into a 250mL round bottom flask under nitrogen protection, add 4-tetraphenylmethane borate (2mmol), use 1:3 ethanol / toluene (100ml) as solvent, add 9% potassium carbonate aqueous solution (9ml ), and tetrakistriphenylphosphine palladium (46mg, 0.04mmol) as a catalyst, heated to reflux for 12 hours, filtered after cooling and rinsed the filter cake with ethanol to obtain the final product che...
Synthetic example 9
[0088] Synthesis Example 9: Synthesis of Donor B53
[0089]
[0090] This example is basically the same as Synthesis Example 7, except that in this example, B45-1 needs to be replaced with B53-1 of 1 / 2 the amount of substance (mol), and 3-bromo-9,9 The '-spirobifluorene was replaced by an equivalent amount (mol) of 4-bromotetraphenylsilane. The final product B53 (0.76g, yield 69%, HPLC analysis purity 99.72%). MALDI-TOF-MS results: Molecular ion peak: 1129.42 Elemental analysis results: Theoretical value: C: 86.05%; H: 5.26%; N: 3.72%; Si: 4.97%; Experimental value: C: 86.01%; H: 5.23 %; N: 3.77%; Si: 4.99%.
Synthetic example 10
[0091] Synthesis Example 10: Synthesis of Donor B67
[0092]
[0093] Under nitrogen protection, add B67-1 (2mmol), 3-chloro-9,9-diphenylfluorene (2mmol) into a 250mL round bottom flask, use 1:3 ethanol / toluene (100ml) as solvent, add 9% potassium carbonate aqueous solution (9ml), and tetrakistriphenylphosphine palladium (46mg, 0.04mmol) were used as a catalyst, heated to reflux for 12 hours, filtered after cooling and rinsed the filter cake with ethanol to obtain the intermediate product B67-2, which was directly used in the following step response.
[0094]
[0095] Under nitrogen protection, B67-2 (2mmol), 3-chlorospiro[fluorene-9,9-oxanthene] (2mmol) was added to a 250mL round bottom flask, and 1:3 ethanol / toluene (100ml) As a solvent, add 9% potassium carbonate aqueous solution (9ml), and tetrakistriphenylphosphine palladium (46mg, 0.04mmol) as a catalyst, heat and reflux for 12 hours, filter after cooling and rinse the filter cake with ethanol to obtain the final ...
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