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Acyclic Boryl Complexes of Copper(I).
Charman, Rex S C; Hobson, Josie A; Jackson, Ross A; Mahon, Mary F; Neale, Samuel E; Liptrot, David J.
Afiliação
  • Charman RSC; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
  • Hobson JA; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
  • Jackson RA; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
  • Mahon MF; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
  • Neale SE; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
  • Liptrot DJ; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
Chemistry ; 30(1): e202302704, 2024 Jan 02.
Article em En | MEDLINE | ID: mdl-37818674
Reaction of (6-Dipp)CuOtBu (6-Dipp=C{NDippCH2 }2 CH2 , Dipp=2,6-iPr2 C6 H3 ) with B2 (OMe)4 provided access to (6-Dipp)CuB(OMe)2 via σ-bond metathesis. (6-Dipp)CuB(OMe)2 was characterised by NMR spectroscopy and X-ray crystallography and shown to be a monomeric acyclic boryl of copper. (6-Dipp)CuB(OMe)2 reacted with ethylene and diphenylacetylene to provide insertion compounds into the Cu-B bond which were characterised by NMR spectroscopy in both cases and X-ray crystallography in the latter. It was also competent in the rapid catalytic deoxygenation of CO2 in the presence of excess B2 (OMe)4 . Alongside π-insertion, (6-Dipp)CuB(OMe)2 reacted with LiNMe2 to provide a salt metathesis reaction at boron, giving (6-Dipp)CuB(OMe)NMe2 , a second monomeric acyclic boryl, which also cuproborated diphenylacetylene. Computational interrogation validated these acyclic boryl species to be electronically similar to (6-Dipp)CuBpin.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article