ZrCl<sub>4</sub>-Catalyzed Michael Reaction of 1,3-Dicarbonyls and Enones under Solvent-Free Conditions
作者:Ch. Reddy、G. Smitha、Sujatha Patnaik
DOI:10.1055/s-2005-861837
日期:——
ZrCl4 has been found to catalyze the conjugate addition of 1,3-dicarbonyl compounds with enones. The reaction does not require any solvent and proceeds smoothly at room temperature leading to the corresponding adduct in good yields.
The present invention relates to novel base stable ionic liquids and uses thereof as solvents in chemical reactions, especially base catalysed chemical reactions and reactions comprising the use of strong basis.
Structural diversity and similar bioactivity in synthetic bicyclononanes
作者:Liliana E. Luna、Pamela S. Forastieri、Patricia Marchiaro、Adriana Limansky、Raquel M. Cravero
DOI:10.1080/00397911.2016.1141429
日期:2016.3.3
ABSTRACT Simple syntheses of diverse bicyclo[3.3.1]nonanes and related compounds as the minimal substructure of bioactive natural products via Michael, aldol, and alkylation reactions from diketones are described herein. The structures of the synthesized compounds were determined by infrared spectroscopy, NMR (1H and 13C), and electrospray ionization–high-resolution mass spectrometry. We also show
Mander’s Reagent for the Deoxycyanation of β-Diketones: A Direct Synthesis of Oxoalkenenitriles
作者:J. Armando Lujan-Montelongo、Alicia E. Cruz-Jiménez、Jeferson B. Mateus-Ruiz、Carolina Silva-Cuevas
DOI:10.1055/a-1809-6545
日期:2022.6
Ethyl cyanoformate and methyl cyanoformate (Mander’s reagent) are both routinely used to perform C-selective ketone alkoxycarbonylations. Interestingly, both reagents were found to yield oxoalkenenitriles through an unprecedented deoxycyanation of 1,3-dicarbonyl compounds (e.g., 2-methylcyclohexane-1,3-dione). Although this method is not general, this is the first time that both Mander’s reagent and
IONIC LIQUIDS WITH A CATION COMPRISING A BASIC MOIETY
申请人:The Queen's University of Belfast
公开号:EP2286915A2
公开(公告)日:2011-02-23
Use of ionic liquids as solvents in base-catalysed chemical reactions wherein the ionic liquid is composed of at least one species of cation and at least one species of anion, characterised in that a cation of the ionic liquid comprises a positively charge moiety and a basic moiety, and further wherein such ionic liquids may be used as promoters or catalysts for the chemical reactions.