Direct synthesis of thermally stable PCP-type rhodium carbenes

Arkadi Vigalok; David Milstein

doi:10.1021/om990764r

Direct synthesis of thermally stable PCP-type rhodium carbenes

Arkadi Vigalok, David Milstein^*

^*Corresponding author for this work

Weizmann Institute of Science

Research output: Contribution to journal › Article › peer-review

49 Scopus citations

Abstract

Dinitrogen rhodium(I) complexes with bis-chelating diphosphine ligands are shown to be robust precursors toward Rh carbene complexes. While the Rh aryl N₂ complex 1 reacts with phenyldiazomethane, giving the phenylcarbene complex 2, the Rh alkyl N₂ precursor 3 reacts with 2 equiv of phenyldiazomethane to yield the Rh vinyl carbene complex 5. The more stable diphenyldiazomethane does not form carbene complexes under similar conditions, giving instead the stable diazomethane complex 10.

Original language	English
Pages (from-to)	2061-2064
Number of pages	4
Journal	Organometallics
Volume	19
Issue number	11
DOIs	https://doi.org/10.1021/om990764r
State	Published - 29 May 2000
Externally published	Yes

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10.1021/om990764r

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N2 - Dinitrogen rhodium(I) complexes with bis-chelating diphosphine ligands are shown to be robust precursors toward Rh carbene complexes. While the Rh aryl N2 complex 1 reacts with phenyldiazomethane, giving the phenylcarbene complex 2, the Rh alkyl N2 precursor 3 reacts with 2 equiv of phenyldiazomethane to yield the Rh vinyl carbene complex 5. The more stable diphenyldiazomethane does not form carbene complexes under similar conditions, giving instead the stable diazomethane complex 10.

AB - Dinitrogen rhodium(I) complexes with bis-chelating diphosphine ligands are shown to be robust precursors toward Rh carbene complexes. While the Rh aryl N2 complex 1 reacts with phenyldiazomethane, giving the phenylcarbene complex 2, the Rh alkyl N2 precursor 3 reacts with 2 equiv of phenyldiazomethane to yield the Rh vinyl carbene complex 5. The more stable diphenyldiazomethane does not form carbene complexes under similar conditions, giving instead the stable diazomethane complex 10.

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Direct synthesis of thermally stable PCP-type rhodium carbenes

Abstract

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