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synthesized and characterized as described in the article: Title: Highly selective route to unsymmetrically substituted 1-{ 2-[ (butylsulfanyl)methyl]-5-( chloromethyl)-4-methox› yphenoxy }-3, 7 -dimethy !octane and isomers toward syn the- sis of conjugated polymer OCl Cl0 used in LEDs: Synthesis and optimizationAuthor(s): Lutsen, L J; van Breemen, A J; Kreuder, W. et al. Source: HELVETICA CHIMICA ACTA Volume: 83 Issue: 12 Pages: 3113-3121 Published: 2000. Equal amounts of mo! of l-bromomethyl-4-(n-oethylsul- foxymethyl)-9, 1O-dihydro-9,10-o-benzenoanthracene and 1-[2-[ ( octylsulfinyl)methyl]-5-(bromo methyl)-4-methox› yphenoxy ]-3, 7-dimethyloctane were dissolved in s-butanol. 

An excess of base (1.3 eq) was also dissolved in s-butanol, flushed for 1 h with Ar and added in one go at 30° C. The mixture was left to react at 30° C. for 1 h under Ar-flow, before doing a precipitation in ice water. The water was neutralized with HCI (IN), extracted with CHCl$_{2 }$ and solvent was removed. The yellow oily precursor polymer was precipitated in MeOH at 0° C., filtered off and dried. 

This lead to the following precursor polymer in 84% yield: 

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Characterization: 

GPC (polystyrene standards): Mw=49.900, PD=2.1 

$^{1}$H NMR (CDCl 3 , ppm): chemical shifts are very broad 

$^{13}$C NMR (CDCl3, ppm): 151.26 (2C), 144.53 (6C), 127.17 ( 4C), 125.13 ( 4C), 123.55 (6C), 114.77-110.99 (2C), 66.93 (IC), 58.00 (IC), 55.57 (IC), 49.64 (5C), 39.13 (IC), 37.30 (IC), 36.42 (IC), 31.57 (3C), 29.80 (IC), 28.86 (6C), 27.80 (IC), 24.55 (IC), 22.53 (2C), 22.42 (6C), 19.54 (IC), 13.90 (2C) 

UVVis: "-max =302 nm 

FT-IR (u, cm- 1 ): 2954, 2925, 2853, 1508, 1464, 1405, 1214, 1045, 744 

Conversion of the Precursor Co-Polymer of Example 

12 into a Conjugated Co-Polymer Comprising Iptycenylene Vinylene and Phenylene Vinylene Units 

The precursor polymer of example 12 was solved in chlo- robenzene. The solution was left to react at 120° C. for 2 h in the presence of Ar and afterwards cooled down. The solution was concentrated under vacuo, redissolved in CH$_{2}$Cl$_{2 }$ and precipitated in cold MeOH to lead a conjugated co-polymer of the following formula: 

## Example 13 

