English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/37727
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Acid−Base Reactions of Methylnickel Hydroxo, Alkoxo, and Amide Complexes with Carbon Acids. Studies on the Reactivity of Noncyclic Nickel Enolates

AuthorsCámpora, Juan ; Matas, Inmaculada ; Palma, Pilar ; Álvarez, Eleuterio ; Graiff, Claudia; Tiripicchio, Antonio
KeywordsHydroxo
Alkoxo
Amido
Carbon acids
Organonickel
Reactivity
Enolate complex
Temperature
Issue Date27-Sep-2007
PublisherAmerican Chemical Society
CitationOrganometallics 26(23): 5712-5721 (2007)
AbstractBasic organonickel hydroxo, alkoxo, or amido complexes of composition Ni(Me)(X)(dippe) (X = OH, t-BuO, cyclo-NC4H8; dippe = i-Pr2PCH2CH2Pi-Pr2) react with enolizable ketones, esters, and nitriles, producing the corresponding enolate complexes. In the case of the hydroxo and alkoxo complexes, these reactions may lead to equilibrium mixtures, allowing a comparison of their respective basicities, while the amido compound reacts clean and quantitatively in all cases, allowing the isolation of the corresponding enolates. While the ketone derivatives display oxygen-bound enolate ligands, the ester and nitrile enolates bind the metal center through the carbon atom. The acetophenone enolate complex has strong nucleophilic properties and rapidly reacts with aldehydes (PhCHO) or CO2, affording the corresponding aldolate and carboxylate addition products.
Description10 páginas, 3 figuras, 2 tablas, 8 esquemas.
Publisher version (URL)http://dx.doi.org/10.1021/om7007259
URIhttp://hdl.handle.net/10261/37727
DOI10.1021/om7007259
ISSN0276-7333
Appears in Collections:(IIQ) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.