TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (Disclosed): Preparation of (I) comprises reduction of anthraquinone compounds of formula (a) and bromination to give 5-bromo anthraquinone compounds of formula (b), reaction of (b) with boronic acid substituted heterocyclic compounds of formula (c) to give anthraquinone substituted heterocyclic compounds of formula (d), bromination of (d) to give bromo substituted anthraquinone compounds of formula (e) followed by reaction with boronic acid compounds of formula (Ar1-L1-B(OH)2). Preferred Components: The organic layer comprises: at least one group of arylamine compounds or styrylarylamine compounds; at least one metal comprising organic metals of Group 1, Group 2, 4th period and 5th period transition metals, lanthanide metals or d-transition elements; and a charge generating layer as well as an electroluminescent layer. SPECIFIC COMPOUNDS - 2159 Compounds (I) are disclosed e.g. 9-(9,9-dimethyl-9H-fluoren-4-yl)-2-methyl-10-phenyl-anthracene, 9-(9,9-dimethyl-9H-fluoren-4-yl)-2-methyl-10-naphthalen-2-yl-anthracene, 9-(9,9-dimethyl-9H-fluoren-4-yl)-2-methyl-10-phenanthren-9-yl-anthracene, 9-(9,9-dimethyl-9H-fluoren-4-yl)-2-methyl-10-naphthalen-1-yl-anthracene and 9-(9,9-dimethyl-9H-fluoren-2-yl)-2,10-diphenyl-anthracene of formula (Ia).    EXAMPLE - 2-Phenyl-anthracene (25 g, 98.53 mmol), N-bromosuccinimide (NBS) (19.3 g, 108.38 mmol) and dichloromethane solvent (800 ml) were charged to a reaction vessel, and the mixture was stirred for 20 hours. When the reaction was completed, water (800 ml) was added, and the mixture was worked up to give 9-bromo-2-phenyl-anthracene (AA) (30.2 g, 90.03 mmol). In a reaction vessel, (AA) (5.5 g, 14.35 mmol), (9,9-dimethyl-9H-fluoren-2-yl)-boronic acid (4.1 g, 17.22 mmol) and trans-dichlorobis(triphenylphosphine)palladium (II) (1 g, 1.44 mmol) were added and stirred in toluene (140 ml). Then, ethanol (70 ml) and 2M sodium carbonate solution (70 ml) were added, and the resultant mixture was stirred under reflux in the presence of nitrogen atmosphere. After 5 hours, the reaction mixture was cooled to room temperature, and methanol (200 ml) was added and the mixture was worked up to give 9-(9,9-dimethyl-9H-fluoren-2-yl)-2-phenyl-anthracene (BB) (4.0 g, 8.05 mmol). In a reaction vessel, (BB) (4 g, 8.05 mmol) and NBS (1.72 g, 9.66 mmol) were dissolved in dichloromethane (100 ml), and the solution was stirred at room temperature. After 20 hours, water (200 ml) was added to quench the reaction. The mixture was worked up to give 10-bromo-9-(9,9-dimethyl-9H-fluoren-2-yl)-2-phenyl-anthracene (CC) (3.6 g, 6.25 mmol). (CC) (5 g, 8.69 mmol), phenylboronic acid (2.8 g, 11.29 mmol) and trans-dichlorobis(triphenylphosphine)palladium (II) (0.6 g, 8.7 mmol) were stirred under reflux in 2M sodium carbonate solution (15 ml) and toluene (100 ml). After 2 hours, the reaction mixture was worked up to give 9-(9,9-dimethyl-9H-fluoren-2-yl)-2,10-diphenyl-anthracene (74%).