TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (Claimed): Preparation of (I) comprises reacting a 1,4-benzoquinone compound of formula (II) with an alkyl compound of formula (R1MX1) (IIA) to give a 4-hydroxycyclohexa-2,5-dien-1-one compound of formula (III), and then reacting (III) with an alkyl compound of formula (R2X2) (IIA) to give (I).M = alkali metal or alkaline earth metal; andX1, X2 = halo.    TECHNOLOGY FOCUS - POLYMERS - The polymer is of formulae (a)-(e).A = 6-20C-arylene or 3-20C-heteroarylene, where R1-R7 in (I) are all optionally substituted by halo, nitro, amino or OH;R1a, R2a = H, 1-20C-alkyl, 6-20C-aryl, 3-20C-heteroaryl or 6-20C-aralkyl;R11-R13 = H, halo, 1-20C-alkyl, 1-20C-alkoxy or 6-20C-aralkyl, where the R1a and R2a are aryl, heteroaryl and aralkyl, and R11-R13 is alkyl, alkoxy and aralkyl including 1-20C-alkyl, 2-20C-alkenyl, 2-20C-alkynyl, 1-20C-alkoxy, amino, OH, halo, CN or nitro (all optionally substituted with one or more substituents of silyl trifluoroacetate);o, p = 1-2; andn = 2-500. SPECIFIC COMPOUNDS - 18 Compounds (I) are disclosed e.g. 8-octoxy-4-octyl-thieno(2,3-f)benzothiophene of formula (Q), 4-(2-(2-butoxyethoxy)ethoxy)-8-octyl-furo(2,3-f)benzofuran, 4-decyl-8-octoxy-selenopheno(2,3-f)(1)benzoselenole, 4-(2-ethylhexoxy)-8-octyl-thieno(2,3-f)benzothiophene, and 8-heptoxy-4-octyl-furo(2,3-f)benzofuran.    EXAMPLE - 6.48 g of 4-Octyl-8-octyloxybenzo(1,2-b:4,5-b')dithiophene was dissolved in 300 ml of dry tetrahydrofuran (THF) in an argon atmosphere and cooled at -78 degrees C. 20.7 ml of 1.6 M n-butyl lithium was added dropwise for 30 minutes. After stirring for 30 minutes at the same temperature, the temperature was slowly raised to room temperature for 1 hour. The mixture was cooled at -78 degrees C and dissolved in THF solvent. 33.1 ml of 1 M Trimethyl tin chloride was added to the mixture. The reaction solution was slowly raised to room temperature and stirred overnight. The reaction was terminated by the addition of 30 ml of cold water, and extracted with diethyl ether for 3 times. After the organic extracts washed twice with water, water was removed over sodium sulfate. The solvent was removed in vacuum, and recrystallized from ethanol to obtain 9.08 g of 2,6-bis(trimethyltin)-4-octyl-8-octyloxybenzo(1,2-b:4,5-b') dithiophene with yield of 80.1%.