1.04 Regio-, Diastereo-, and Enantioselective Addition of Organocopper Reagents onto CO and CN Bonds

Vrancken, Emmanuel; Campagne, Jean‐Marc; Mangeney, Pierre

doi:10.1016/b978-0-08-097742-3.00106-3

Cited by 1 publication

(2 citation statements)

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“…Organocopper reagents are widely used in organic synthesis and are routinely obtained by transmetalation reactions of the corresponding organo-magnesium (Grignard reagent), organo-lithium, or organo-zinc precursor by a Cu(I) salt at low temperature, − as depicted in Scheme , eq 1. Those species are known to be thermally unstable and to decompose at low temperature, generally between −90 and 0 °C depending on the nature of the organic moiety.…”

Section: Results and Discussionmentioning

confidence: 99%

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Copper Nanoparticles with a Tunable Size: Implications for Plasmonic Catalysis

Ouyang

Noël

Courty

et al. 2022

ACS Appl. Nano Mater.

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A new access to copper(0) nanoparticles (CuNPs) from readily available organocopper reagents is reported. This original amine-free methodology proves to be practical, fast and highly reproducible. It yields spherical CuNPs with an excellent control of their size and shape. These CuNPs are fully characterized by electronic microscopy (TEM, HRTEM), X-Ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and UV-Vis spectroscopy. The size of the synthesized nanoparticles is in a size range of 5-9 nm. The reactional pathway is studied and shows a two-step process implying the formation of a primitive bulk composed of spheroid CuNPs followed by a reorganization step induced by a thiol additive and leading to the final NPs.The robustness of this convenient protocol enables decigram scale synthesis of CuNPs without altering their size and morphology, which makes it a preparative method of choice for their synthesis. This protocol allows the rational design of future copper-based catalysts. The importance of controlling several physicochemical parameters such as size, composition, and shape in metal nanomaterials is indeed widely reported. The results presented here offer many prospects for the rapidly developing field of copper plasmonic catalysis.

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Section: Results and Discussionmentioning

confidence: 99%

Section: State Of the Artmentioning

confidence: 99%