Provided is a method for producing (alkyl)arene compounds represented by Formulae 3-1, 3-2, and 3-3 by the Friedel-Crafts alkylation reaction of alkyl halide compounds and arene compounds using organic phosphine compounds as a catalyst.

##STR00001##

An object is to establish a technology with which an organic magnesium compound can be easily and efficiently synthesized at a low cost with few steps that do not involve a complex chemical method. A method for synthesizing an organic magnesium compound includes, in a reaction solvent, reacting an organic halide represented by General Formula I (R.sup.aX.sup.a) with a dispersion product obtained by dispersing sodium in a dispersion solvent to obtain an organic sodium compound represented by General Formula II (R.sup.aNa), and reacting the obtained organic sodium compound with a magnesium halide represented by General Formula III (Mg(X.sup.b).sub.2) to obtain an organic magnesium compound represented by General Formula IV (R.sup.aMgX.sup.b).

A compound represented by the following formula (1), wherein X.sub.1 is O or S, and two or more of Y.sub.1, Y.sub.2 and Y.sub.3 are N, provided that the case where one or both of Ar.sub.1Ar.sub.2 and Ar.sub.3Ar.sub.4 is a p-terphenyl-3-yl group is excluded.

##STR00001##

A compound represented by the following formula (1), wherein X.sub.1 is O or S, and two or more of Y.sub.1, Y.sub.2 and Y.sub.3 are N, provided that the case where one or both of Ar.sub.1Ar.sub.2 and Ar.sub.3Ar.sub.4 is a p-terphenyl-3-yl group is excluded.

##STR00001##

An organic electroluminescence device, comprising: an anode, an emitting layer, a first electron-transporting layer, a second electron-transporting layer and a cathode in this order, wherein the second electron-transporting layer comprises a compound represented by the following formula (1), and the emitting layer comprises a compound represented by the following formula (10).

##STR00001##

The present specification relates to an organic light emitting device.

The present specification relates to an organic light emitting device.

An organic compound that emits red light having a long wavelength and that is represented by formula [1] below. In the formula [1], R.sub.1 to R.sub.24 are each independently selected from a hydrogen atom or a substituent.

##STR00001##

An organic layer composition includes an aromatic ring compound, an additive including perfluoroalkyl in the structure, and a solvent, wherein a fluoro (F) group included in the additive is included in an amount of greater than 0 wt % and less than or equal to 30 wt % based on a total weight, 100 wt % of the additive, and a surface tension decrease rate of the additive measured according to Condition 1 is 0.1% to 30%. The definition of Condition 1 is the same as described in the specification.

The present specification relates to an organic light emitting device.