DIFUNCTIONAL SILARYLENE-CONTAINING ALIPHATIC COMPOUNDS: SYNTHESIS AND CHARACTERIZATION OF BIS(p (CARBOXYMETHYL)PHENYL)(R)PHENYLSILANE AND BIS(p-(2-AMINOETHYL)PHENYL)(R)PHENYLSILANE (R = Me, Ph)
| Autor: | Luis H. Tagle, Hans Lembach, Claudio A. Terraza |
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| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Journal of the Chilean Chemical Society, Volume: 55, Issue: 1, Pages: 137-140, Published: 2010 Journal of the Chilean Chemical Society v.55 n.1 2010 SciELO Chile CONICYT Chile instacron:CONICYT |
| Popis: | This work describes the synthesis of aliphatic diacids and diamines containing a silarylene moiety in the structure. These compounds can be employed as monomers for the synthesis of poly(amides) and poly(esters) or other condensation polymers. Thus, bis(p-methylphenylen)(R)phenylsilanes were obtained from p-bromotoluene and dicloro(R)phenylsilane (R= Me, Ph). Also, the dibenzyl nitrile compounds bis(p-(cyanomethyl)phenylen)(R)phenylsilanes were synthesized from the respective bis(p-(bromomethyl)phenylen) (R)phenylsilanes derivatives. The hydrolysis of the dibenzyl nitrile derivatives gives the respective diacids bis(p-(carboxymethyl)phenylen)(R)phenylsilanes with low yield. A direct Grignard reaction type was also studied using as precursors the dibenzyl bromide compounds. In a second stage, the synthesis of the phenethylamine bis(p-(2-aminoethyl)phenylen)(R)phenylsilane was studied by the reduction of the dibenzyl nitrile compounds. All compounds were characterized by IR-TF, 1H, 13C and 29Si NMR. |
| Databáze: | OpenAIRE |
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