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)

作者：Terraza Claudio A^*; Tagle Luis H; Lembach Hans

来源：Journal of the Chilean Chemical Society, 2010, 55(1): 137-140.

• Silicon
• silarylene
• dibenzyl bromide
• dibenzyl nitrile
• diphenylacetic acid
• phenethylamines

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 nitrite compounds bis(p-(cyanomethyl)phenylen)(R)phenylsilanes were synthesized from the respective bis(p-(bromomethyl)phenylen) (R)phenylsilanes derivatives. The hydrolysis of the dibenzyl nitrite 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 nitrite compounds. All compounds were characterized by IR-TF, (1)H, (13)C and (29)Si NMR.

• 出版日期2010-3