Co‐catalyzed Selective syn‐Hydrosilylation of Internal Alkynes

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Abstract: Vinylsilanes are highly appealing and convenient chemical derivatives, as evidenced by the increasing number of synthetic transformations utilizing this class of compounds. Herein, a new comprehensive cobalt‐catalyzed procedure has been developed enabling selective hydrosilylation of internal aryl‐, alkyl‐, and silylalkynes. Cobalt complexes bearing triazine‐based PNP pincer‐type ligands provide exclusive syn‐addition of primary as well as secondary silanes to C≡C bonds. As a result, (E)‐silylalkenes and vicinal disilylalkenes were effectively obtained with excellent stereoselectivity and regioselectivity. Unlike several TM‐catalyzed procedures, no external additives were required since hydrosilanes act as both substrates and activators.

Location: Deutsche Nationalbibliothek Frankfurt am Main

Extent: Online-Ressource

Language: Englisch

Bibliographic citation: Co‐catalyzed Selective syn‐Hydrosilylation of Internal Alkynes ; day:30 ; month:06 ; year:2023 ; extent:8
ChemCatChem ; (30.06.2023) (gesamt 8)

Creator: Stachowiak‐Dłużyńska, Hanna
Kuciński, Krzysztof
Wyrzykiewicz, Bożena
Kempe, Rhett
Hreczycho, Grzegorz

DOI: 10.1002/cctc.202300592

URN: urn:nbn:de:101:1-2023063015222094586632

Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.

Last update: 14.08.2025, 10:54 AM CEST

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Associated

Stachowiak‐Dłużyńska, Hanna
Kuciński, Krzysztof
Wyrzykiewicz, Bożena
Kempe, Rhett
Hreczycho, Grzegorz

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Cobalt-catalyzed branched selective hydroallylation of terminal alkynes

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Cobalt-Catalyzed Hydroboration of Alkynes

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syn-Selective alkylarylation of terminal alkynes via the combination of photoredox and nickel catalysis

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