Zinc‐Catalyzed Oxidation Reactions

Lu, Liang‐Qiu; Wu, Xiao‐Feng

doi:10.1002/9783527675944.ch3

Zinc Catalysis 2015

DOI: 10.1002/9783527675944.ch3

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Zinc‐Catalyzed Oxidation Reactions

Liang‐Qiu Lu

Xiao‐Feng Wu

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2023

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Cited by 6 publications

References 52 publications

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Zinc‐Catalyzed Dehydrogenative Cross‐Coupling of Terminal Alkynes with Aldehydes: Access to Ynones

et al. 2015

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Because of the lackofredox ability,zinc has seldom been used as ac atalyst in dehydrogenative cross-coupling reactions.H erein, an ovel zinc-catalyzed dehydrogenative C(sp 2 )ÀH/C(sp)ÀHc ross-coupling of terminal alkynes with aldehydes was developed, and provides asimple way to access ynones from readily available materials under mild reaction conditions.Good reaction selectivity can be achieved with a1:1 ratio of terminal alkyne and aldehyde.V arious terminal alkynes and aldehydes are suitable in this transformation.

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Zinc‐Catalyzed Dehydrogenative Cross‐Coupling of Terminal Alkynes with Aldehydes: Access to Ynones

et al. 2015

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O₂‐Mediated Oxidation of Aminoboranes through 1,2‐N Migration

2018

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In analogy to the classical reaction of CÀBb onds with peroxides,t he first oxidative functionalization of aminoboranes through a1 ,2-N migration was realized.R eadily available aliphatic nitro compounds are thereby transformed into N-and O-functionalized hydroxylamines in as ingle synthetic operation. Addition of hazardous peroxides is avoided. Instead, the insertion of O 2 ,a st he terminal oxidant, into Zn À Cb onds provides the necessary peroxides.T he required zinc organyls,i nt urn, are formed through ab oronto-zinc exchange,f rom an organoboronic ester byproduct of the nitro-to-aminoborane transformation.Scheme 1. Oxidation of organoboranes (a) and aminoboranes (b).

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Visible Light Responsive Dinuclear Zinc Complex Consisting of Proximally Arranged Two d¹⁰‐Zinc Centers**

Wada,

Maruchi,

Ishii

et al. 2023

Angewandte Chemie

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So far, Zn(II)‐based d10 complexes have been known to be colorless unless they are accompanied by chromophoric groups, and therefore both fundamental and advanced photophysical performance of Zn centers of complexes, especially in visible‐light regions has been unexplored. Here, we first demonstrate a dinuclear Zn(II) complex that shows visible light absorption using an orbital distributed over closely contacted two Zn centers experimentally determined by X‐ray crystallography. A contrastive study demonstrated that intermetallic orbital interaction in dinuclear Zn(II) complex is responsible for capturing visible light to exhibit orangish yellow color, whereas an analogous one without such an interaction is colorless. This work demonstrates that introduction of Zn−Zn interactions to Zn(II) molecules contradicts the common notion that Zn is unresponsive to visible light and expands the photophysical field of zinc chemistry.

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Zinc‐Catalyzed Oxidation Reactions

Cited by 6 publications

References 52 publications

Zinc‐Catalyzed Dehydrogenative Cross‐Coupling of Terminal Alkynes with Aldehydes: Access to Ynones

Zinc‐Catalyzed Dehydrogenative Cross‐Coupling of Terminal Alkynes with Aldehydes: Access to Ynones

O₂‐Mediated Oxidation of Aminoboranes through 1,2‐N Migration

Visible Light Responsive Dinuclear Zinc Complex Consisting of Proximally Arranged Two d¹⁰‐Zinc Centers**

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Zinc‐Catalyzed Oxidation Reactions

Cited by 6 publications

References 52 publications

Zinc‐Catalyzed Dehydrogenative Cross‐Coupling of Terminal Alkynes with Aldehydes: Access to Ynones

Zinc‐Catalyzed Dehydrogenative Cross‐Coupling of Terminal Alkynes with Aldehydes: Access to Ynones

O2‐Mediated Oxidation of Aminoboranes through 1,2‐N Migration

Visible Light Responsive Dinuclear Zinc Complex Consisting of Proximally Arranged Two d10‐Zinc Centers**

Contact Info

Product

Resources

About

O₂‐Mediated Oxidation of Aminoboranes through 1,2‐N Migration

Visible Light Responsive Dinuclear Zinc Complex Consisting of Proximally Arranged Two d¹⁰‐Zinc Centers**