Light-emitting device, electronic device, and lighting device
摘要
說明書
In the case where the above synthesis reaction is performed using a Buchwald-Hartwig reaction, X represents a halogen element or a triflate group. As the halogen element, iodine, bromine, or chlorine is preferable. In this reaction, a palladium catalyst including a palladium complex or a palladium compound such as bis(dibenzylideneacetone)palladium(0) or allylpalladium(II) chloride dimer and a ligand that coordinates to the palladium complex or the palladium compound, such as tri(tert-butyl)phosphine, di-tert-butyl(1-methyl-2,2-diphenylcyclopropyl)phosphine, or tricyclohexylphosphine, is used. As the base, an organic base such as sodium tert-butoxide, an inorganic base such as cesium carbonate, and the like can be used. In the case where a solvent is used, toluene, xylene, 1,3,5-trimethylbenzene (mesitylene), or the like can be used. Furthermore, when the reaction temperature is set higher than or equal to 120° C., the reaction between the aryl group including a halogen element (e.g., chlorine) with a small periodic number and an amine proceeds in a short time in a high yield; thus, it is preferable to use xylene or 1,3,5-trimethylbenzene having high heat resistance.
