Open AccessSynthesis of hexenyl aryl tellurides and the catalytic activity of their platinum(II) complexes as polysiloxanesupported catalysts in hydrosilylation of olefins
Author(s) -
Ali Z. AlRubaie,
Zainab K. Al-Khazragie
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/928/5/052031
Subject(s) - hydrosilylation , triethoxysilane , platinum , chemistry , catalysis , aryl , telluride , polymer chemistry , fumed silica , organic chemistry , medicinal chemistry , alkyl
5-hexenyl 1-naphthyl telluride (1) and 5-hexenyl (1,1’-binaphthyl-2-yl) telluride (2) were prepared from the reaction of 1-bromonaphthalene and 2-bromobinaphthalene with di(5-hexenyl) ditelluride in presence of lithium metal. Reaction of 1 and 2 with K 2 PtCl 4 afforded the platinum(II) complexes 3 and 4 , respectively in good yields. Silica-bound telluride-platinum complexes were directly synthesized from fumed silica, triethoxysilane and platinum complexes ( i.e. 3 and 4 ). The catalytic activities of polysiloxane-supported platinum complexes were examined with 1-hexene, 1-decene and 1-dodecene at different temperature. It was found that these catalysts are efficient for hydrosilylation of olefins with triethoxysilane.