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Issue 8, 2019
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Synthesis of (E)-1,4-disilsesquioxylsubstituted but-1-en-3-ynes via platinum-catalyzed dimerization of ethynylsiloxysilsesquioxanes

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Abstract

A new platinum complex bearing bulky N-heterocyclic carbene ligand of the general formula [Pt(IPr*Ph)(dvtms)] (where IPr*Ph = 1,3-bis{2,4,6-tris(diphenylmethyl)phenyl}imidazol-2-ylidene, dvtms = divinyltetramethyldisiloxane) exhibits a high catalytic activity towards E-selective dimerization of ethynyl substituted siloxysilsesquioxanes. This process leads to a novel class of functionalized silsesquioxane derivatives, resembling their dumbbell-shaped silsesquioxane analogues.

Graphical abstract: Synthesis of (E)-1,4-disilsesquioxylsubstituted but-1-en-3-ynes via platinum-catalyzed dimerization of ethynylsiloxysilsesquioxanes

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Publication details

The article was received on 28 Dec 2018, accepted on 18 Jan 2019 and first published on 31 Jan 2019


Article type: Paper
DOI: 10.1039/C8DT05142A
Citation: Dalton Trans., 2019,48, 2657-2663

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    Synthesis of (E)-1,4-disilsesquioxylsubstituted but-1-en-3-ynes via platinum-catalyzed dimerization of ethynylsiloxysilsesquioxanes

    P. Żak, M. Bołt, B. Dudziec and M. Kubicki, Dalton Trans., 2019, 48, 2657
    DOI: 10.1039/C8DT05142A

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