250134-96-4Relevant academic research and scientific papers
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)
Terraza, Claudio A.,Tagle, Luis H.,Lembach, Hans
experimental part, p. 137 - 140 (2010/08/06)
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.
