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Updated: Apr 26, 2026

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
Published on: October 18, 2019
Silylative coupling versus metathesis--efficient methods for the synthesis of difunctionalized double-decker
Patrycja Żak1, Beata Dudziec, Maciej Kubicki
1Faculty of Chemistry, Department of Organometallic Chemistry, Adam Mickiewicz University in Poznan, Umultowska 89b, 61-614 Poznan (Poland).
Abstract:
A series of functionalized dialkenylsilsesquioxanes were obtained by efficient and highly stereoselective silylative coupling and cross-metathesis of divinylsubstituted double-decker silsesquioxanes (DDSQ-2SiVi) with substituted styrenes and other olefins. Both reactions proceed highly stereoselectively and lead to nearly quantitative formation of E isomers. The optimized reaction conditions for styrene were adopted for successful silylative coupling polycondensation of DDSQ-2SiVi with 1,4-divinylbenzene yielding stereoregular cooligomer containing double-decker (silsesquioxyl-silylene)-vinylene-phenylene units.
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