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BIBTEX RIS

Preferential α‐Hydrosilylation of Terminal Alkynes by Bis‐N‐Heterocyclic Carbene Rhodium(III) Catalysts

2015; Wiley; Volume: 357; Issue: 2-3 Linguagem: Inglês

10.1002/adsc.201400673

ISSN

1615-4169

Autores

Manuel Iglesias, Mélanie Aliaga‐Lavrijsen, Pablo J. Sanz Miguel, Francisco J. Fernández‐Álvarez, Jesús J. Pérez‐Torrente, Luis A. Oro,

Tópico(s)

Catalytic Cross-Coupling Reactions

Resumo

Abstract We describe a bis‐N‐heterocyclic carbene rhodium(III) complex, featuring two trifluoroacetato ligands, that affords a variety of α‐vinylsilanes in good yields by hydrosilylation of terminal alkynes. Selectivities around 7:1 α/β‐( E ) were reached, while the β‐( Z ) product was only marginally obtained. This example sharply contrasts with the β‐( Z )‐selectivity observed for its parent diiodido complex magnified image

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