A novel organic material with fewer impurities, a light-emitting element including the organic material, and a light-emitting device, an electronic appliance, and a lighting device each of which includes the light-emitting element are provided. The organic material is obtained by coupling an aryl halide and an aryl boronic acid or an aryl boronic acid ester. The aryl boronic acid or the aryl boronic acid ester includes at least one of a first impurity in which a boryl group of the aryl boronic acid or the aryl boronic acid ester is substituted by hydrogen and a second impurity in which a molecular mass of 16 or 17 is added to the molecular mass of the first impurity. The concentration of an impurity other than the first impurity and the second impurity is 1% or lower.
提供了一种新型有机材料,该材料具有较少的杂质,包括该有机材料的发光元素,以及包括该发光元素的发光装置、电子器件和照明装置。该有机材料是通过偶联芳基卤化物和芳基
硼酸或芳基
硼酸酯得到的。芳基
硼酸或芳基
硼酸酯包括第一杂质和第二杂质中的至少一种。第一杂质是指芳基
硼酸或芳基
硼酸酯的
硼基团被氢替代的杂质,第二杂质是指分子量比第一杂质增加16或17的杂质。除第一杂质和第二杂质以外的杂质浓度为1%或更低。