TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The organic electroluminescent device comprises a first electrode; a second electrode; and at least one organic layer(s) interposed between the first electrode and the second electrode, where the organic layer comprises one or more (I) and one or more dopant(s) comprising 9-benzothiazol-2-yl-1,1,6,6-tetramethyl-2,3,5,6-tetrahydro-1H,4H-11-oxa-3a-aza-benzo(de)anthracen-10-one, (Ar13-(N(Ar11)(Ar12))c) (III) or substituted perylene compounds of formula (IV); or one or more hosts of formula ((Ar21)f-L21-(Ar22)g) (V) or ((Ar23)h-L22-(Ar24)i) (VI). In formulae (III)-(IV),A11, Ar12 = H, deuterium, halo, 1-60C alkyl, 6-60C aryl, 4-60C heteroaryl, mono or di-(6-60C)arylamino, mono or di-(1-60C)alkylamino, 5 or 6-membered heterocycloalkyl comprising one or more heteroatoms of N, O or S or 3-60C cycloalkyl, or Ar11, Ar12 may be linked via (3-60C) alkylene or (3-60C) alkenylene with or without a fused ring to form an alicyclic ring or a monocyclic or polycyclic aromatic ring;Ar13 = 6-60C aryl, 4-60C heteroaryl, aryl groups of formulae (i)-(j) or (R101-C?=C-Ar15), when c is 1;Ar13 = 6-60C arylene, 4-60C heteroarylene, arylene groups of formulae (k)-(l) or arylene group of formula (-C?=C-Ar15-), when c is 2;Ar14, Ar15 = 6-60C arylene or 4-60C heteroarylene;R101, R103 = H, deuterium, 1-60C alkyl or 6-60C aryl;d = 1-4;e = 0 or 1, where the alkyl, aryl, heteroaryl, arylamino, alkylamino, cycloalkyl or heterocycloalkyl of Ar11 and Ar12, the aryl, heteroaryl, arylene or heteroarylene of Ar13, the arylene or heteroarylene of Ar14 and Ar15, or the alkyl or aryl of R101, R103 are further substituted by one or more substituents of halo, deuterium, 1-60C alkyl, 6-60C aryl, 4-60C heteroaryl, 5 or 6-membered heterocycloalkyl comprising one or more heteroatoms of N, O and S, 3-60C cycloalkyl, tri(1-60C)alkylsilyl, di(1-60C)alkyl (6-60C)arylsilyl, tri(6-60C)arylsilyl, adamantyl, 7-60C bicycloalkyl, 2-60C alkenyl, 2-60C alkynyl, cyano, mono- or di- (1-60C)alkylamino, mono- or di-(6-60C)arylamino, (6-60C)ar(1-60C)alkyl, (6-60C)aryloxy, (1-60C)alkyloxy, (6-60C)arylthio, (1-60C)alkylthio, (1-60C)alkoxycarbonyl, (1-60C)alkylcarbonyl, (6-60C)arylcarbonyl, carboxyl, nitro or hydroxyl;R111, R114 = H, deuterium, halo, 1-60C alkyl, 6-60C aryl, 4-60C heteroaryl comprising one or more heteroatoms of N, 0 and S, 5- or 6-membered heterocycloalkyl comprising one or more heteroatoms of N, O and S, 3-60C cycloalkyl, tri (1-60C)alkylsilyl, di(1-60C)alkyl (6-60C)arylsilyl, tri(6-60C)arylsilyl, adamantyl, 7-60C bicycloalkyl, 2-60C alkenyl, 2-60C alkynyl, 1-60C alkoxy, cyano, mono or di-(1-60C)alkylamino, mono- or di-(6-60C)arylamino, (6-60C)ar(1-60C)alkyl, (6-60C)aryloxy,(6-60C)arylthio, (1-60C)alkoxycarbonyl, carboxyl, nitro or hydroxyl, or each of R111, R114 may be linked to an adjacent substituent via (3-60C) alkylene or (3-60C) alkenylene with or without a fused ring to form an alicyclic ring or a monocyclic or polycyclic aromatic ring, where the alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, arylsilyl, alkylsilyl, alkylamino or arylamino of R111, R114 or the alicyclic ring or monocyclic or polycyclic aromatic ring formed as they are linked to an adjacent substituent via 3-60C alkylene or 3-60C alkenylene with or without a fused ring may be further substituted by one or more substituents of deuterium, halo, 1-60C alkyl, 6-60C aryl, 4-60C heteroaryl comprising one or more heteroatoms of N, O and S, 5 or 6-membered heterocycloalkyl comprising one or more heteroatoms of N, O and S, 3-60C cycloalkyl, tri(1-60C)alkylsilyl, di(1-60C)alkyl(6-60C)arylsilyl, tri(6-60C)arylsilyl, adamantyl, 7-60C bicycloalkyl, 2-60C alkenyl, 2-60C alkynyl, 1-60C alkoxy, cyano, mono or di-(1-60C)alkylamino, mono or di-(6-60C)arylamino, 6-60C-ar(1-60C)alkyl, 6-60C aryloxy, 6-60C arylthio, 1-60C alkoxycarbonyl, carboxyl, nitro and hydroxyl.In formulae (V) and (VI),L21 = 6-60C arylene or 4-60C heteroarylene;L22 = anthracenylene;Ar21, Ar24 = H, 1-60C alkyl, 1-60C alkoxy, halo, 4-60C heteroaryl, 5-60C cycloalkyl or 6-60C aryl, and the cycloalkyl, aryl or heteroaryl of Ar21, Ar24 may be further substituted by one or more substituents of 6-60C aryl or 4-60C heteroaryl with or without one or more substituents of deuterium, 1-60C alkyl with or without halo substituents, 1-60C alkoxy, 3-60C cycloalkyl, halo, cyano, tri(1-60C)alkylsilyl, di(1-60C)alkyl(6-60C)arylsilyl and tri(6-60C)arylsilyl, 1-60C alkyl with or without halo substituents, 1-60C alkoxy, 3-60C cycloalkyl, halo, cyano, tri(1-60C)alkylsilyl, di(1-60C)alkyl(6-60C)arylsilyl or tri(6-60C)arylsilyl; andf, g, h, i = 0-4.In the device, the organic layer comprises: one or more compound(s) comprising arylamine compounds or styrylarylamine compounds; comprises one or more metal(s) comprising organic metals of Group 1, Group 2, 4th period and 5th period transition metals, lanthanide metals and d-transition elements; and an electroluminescent layer and a charge generating layer.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (Disclosed): Preparation: Preparation of (I) comprises reaction of bromine substituted heteroaryl compounds of formula (L1) with magnesium to give heteroaryl magnesium bromide compounds of formula (L2), reaction of (L2) with phthalic acid to give substituted benzoic acid compounds of formula (L3), cyclization of (L3) to give substituted anthroquinone compounds of formula (L4), hydrolysis followed by reaction with aryl compounds of formula (L4) to give substituted dihydroanthroquinone compounds of formula (L5) followed by dehydration to give anthroquinone compounds of formula (L6) (representative of (I)). Preferred Definitions:    L = 7 tricyclic rings of formulae (a1)-(a7); and    R11, R24 = H, deuterium, halo, 1-60C alkyl, 6-60C aryl, 3-60C heteroaryl comprising one or more heteroatoms of N, O and S, morpholino, thiomorpholino, 5 or 6 membered heterocycloalkyl comprising one or more heteroatoms of N, O and S, 3-60C cycloalkyl, tri(1-60C)alkylsilyl, di(1-60C)alkyl(6-60C)arylsilyl, tri(6-60C)arylsilyl, adamantyl, 7-60C bicycloalkyl, 2-60C alkenyl, 2-60C alkynyl, cyano, amino, mono or di-(1-60C)alkylamino, mono or di-(6-60C)arylamino, (6-60C)ar(1-60C)alkyl, (1-60C)alkyloxy, (1-60C)alkylthio, (6-60C)aryloxy, 6-60C arylthio, 1-60C alkoxycarbonyl, 1-60C alkylcarbonyl, 6-60C arylcarbonyl, carboxyl, nitro or OH, where the alkyl, aryl, heteroaryl, heterocycloalkyl, cycloalkyl, trialkylsilyl, dialkylarylsilyl, triarylsilyl, adamantyl, alkenyl, alkynyl, amino, alkylamino or arylamino of R12, R24 may be further substituted by one or more substituents of deuterium, halo, halo(1-60C)alkyl, (1-60C)alkyl, (6-60C)aryl, (3-60C) heteroaryl comprising one or more heteroatoms of N, O and S, morpholino, thiomorpholino, 5 or 6 membered heterocycloalkyl comprising one or more heteroatoms of N, O and S, 3-60C cycloalkyl, tri (1-60C)alkylsilyl, di(1-60C)alkyl(6-60C)arylsilyl, tri(6-60C)arylsilyl, adamantyl, 7-60C bicycloalkyl, 2-60C alkenyl, 2-60C alkynyl, cyano, amino, mono or di (1-60C) alkylamino, mono or di (6-60C) arylamino, (6-60C)ar(1-60C)alkyl, (1-60C)alkyloxy, (1-60C)alkylthio, (6-60C)aryloxy, (6-60C)arylthio, (1-60C)alkoxycarbonyl, (1-60C)alkylcarbonyl, 6-60C arylcarbonyl, carboxyl, nitro or hydroxyl.    SPECIFIC COMPOUNDS - 665 Compounds (I) are disclosed e.g. 5,5-dimethyl-6,11-diphenyl-naphtho(3,2-b)(1)benzosilole, 5,5-dimethyl-7,12-di(naphthalen-1-yl)-5H-anthra(2,3-b)benzo(d)silole, 1,1'-(5,5-dimethyl-5H-anthra(2,3-b)benzo(d)silole-7,12-diyl)diisoquinoline, 2,2'-(5,5-dimethyl-5H-anthra(2,3-b)benzo(d)silole-7,12-diyl)dipyridine and 5,5-dimethyl-3,9-di(naphthalen-1-yl)-7,12-diphenyl-5H-anthra(2,3-b)benzo(d)silole of formula (Ia).    EXAMPLE - Bromobenzene (7.2 g) was dissolved in tetrahydrofuran (100 ml) and n-butyl lithium (14.6 mmol, 2.5 M in hexane) was slowly added at -78 degrees C. After stirring for an hour, 13,13-dimethyl-2,9-di-naphthalen-1-yl-13H-13-sila-indeno(1,2-b)anthracene-6,11-dione (4 g) was added at -78 degrees C. After stirring for 6 hours at room temperature, distilled water was added. After extracting, followed by drying with magnesium sulfate, followed by distillation to give 13,13-dimethyl-2,9-di-naphthalen-1-yl-6,11-diphenyl-11,13-dihydro-6H-13-sila-indeno(1,2-b)anthracene-6,11-diol (Z) (8.8 g). (Z) (8.8 g), potassium iodide (5.5 g) and sodium hypophosphite (7.1 g) were mixed with acetic acid (100 ml) and stirred under reflux. 6 hours later, after cooling to room temperature, distilled water was added and the produced solid was filtered under reduced pressure. The solid was neutralized by washing with aqueous sodium hydroxide solution to give 5,5-dimethyl-3,9-di(naphthalen-1-yl)-7,12-diphenyl-5H-anthra(2,3-b)benzo(d)silole (3 g, 63.9 %).