TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (Disclosed): Preparation of (I) comprises: reacting an anthracene compound of formula (A1) with bromide compounds of formulae (R4Br) and (R3Br) to give an anthracene diol compound of formula (A2); dehydrating (A2) to give a substituted anthracene compound of formula (A3); and reacting (A3) with a boronic acid compound of formula ((RO)2-B-L-X) to give (I).R = H or alkyl. Preferred Definitions:    X = Si(tert-butyl)3 or -(CH3)2SiC8H17; and    R3, R4 = 4-methyl-naphthalene-1-yl.    SPECIFIC COMPOUNDS - 3 Compounds (I) are specifically claimed i.e. (7-(9,10-bis(4-methylnaphthalen-1-yl)anthracen-2-yl)naphthalen-2-yl)triisopropylsilane of formula (Ia), (7-(9,10-bis-(4-methyl-naphthalen-1-yl)-anthracen-2-yl)-naphthalen-2-yl)-dimethyl-octyl-silane and (9,10-bis-(4-methyl-naphthalen-1-yl)-anthracen-2-yl)-dimethyl-octyl-silane.    EXAMPLE - 2-Chloroanthraquinone (3.6 g), 2,7-tetramethyl dioxaborolane triisopropylsilyl naphthalene (7.37 g), tricyclohexyl phosphine (0.84 g), tris(dibenzylideneacetone)palladium(0) (2.7 g), potassium orthophosphate (6.2 g) were all weighed under nitrogen and suspended in degassed toluene (100 ml). The reaction mixture was refluxed and worked up to give 2-(7-(triisopropylsilyl)naphthalen-2-yl)anthracene-9,10-dione (a1). n-Butyl lithium (17 ml) solution in hexanes was added to a mixture of 4-methyl-1-bromonaphthalene (5.5 g) in tetrahydrofuran (THF) (300 ml) at -78 degrees C. The reaction mixture was stirred at ambient temperature for 3 hours, cooled down again to -78 degrees C, and treated with a solution of (a1) (10 g) in THF (100 ml). The mixture was stirred overnight and allowed to reach the room temperature and worked up to give 9,10-bis(4-methylnaphthalen-1-yl)-2-(7-(triisopropylsilyl)naphthalen-2-yl)-9,10-dihydroanthracene-9,10-diol (a2). Potassium iodide (2.1 g) and sodium dihydrogen phosphate (1.90 g) were added to a mixture of (a2) (4.2 g) in acetic acid (50 ml). The reaction mixture was stirred for 3 hours at 100 degrees C and cooled to room temperature and worked up to give (7-(9,10-bis(4-methylnaphthalen-1-yl)anthracen-2-yl)naphthalen-2-yl)triisopropylsilane (2 g).