An Improved Protocol for the Direct Asymmetric Aldol Reaction in Ionic Liquids, Catalysed by Onium Ion-Tagged Prolines

2007 ◽  
Vol 349 (11-12) ◽  
pp. 2061-2065 ◽  
Author(s):  
Marco Lombardo ◽  
Filippo Pasi ◽  
Srinivasan Easwar ◽  
Claudio Trombini
Keyword(s):  
Ionic Liquids ◽  
Aldol Reaction ◽  
Asymmetric Aldol ◽  
Asymmetric Aldol Reaction

ChemInform Abstract: Protonated Arginine and Lysine as Catalysts for the Direct Asymmetric Aldol Reaction in Ionic Liquids.

ChemInform ◽  
2009 ◽  
Vol 40 (10) ◽  
Author(s):  
Marco Lombardo ◽  
Srinivasan Easwar ◽  
Filippo Pasi ◽  
Claudio Trombini ◽  
Dilip D. Dhavale
Keyword(s):  
Ionic Liquids ◽  
Aldol Reaction ◽  
Asymmetric Aldol ◽  
Asymmetric Aldol Reaction

An Improved Protocol for the Direct Asymmetric Aldol Reaction in Ionic Liquids, Catalyzed by Onium Ion-Tagged Prolines.

ChemInform ◽  
2007 ◽  
Vol 38 (52) ◽  
Author(s):  
Marco Lombardo ◽  
Filippo Pasi ◽  
Srinivasan Easwar ◽  
Claudio Trombini
Keyword(s):  
Ionic Liquids ◽  
Aldol Reaction ◽  
Asymmetric Aldol ◽  
Asymmetric Aldol Reaction

ChemInform Abstract: Proline-Catalyzed Asymmetric Aldol Reaction in Guanidine-Derived Ionic Liquids.

ChemInform ◽  
2008 ◽  
Vol 39 (44) ◽  
Author(s):  
Jabbar Shah ◽  
Haiko Blumenthal ◽  
Zekarias Yacob ◽  
Juergen Liebscher
Keyword(s):  
Ionic Liquids ◽  
Aldol Reaction ◽  
Asymmetric Aldol ◽  
Asymmetric Aldol Reaction

ChemInform Abstract: Chiral Room Temperature Ionic Liquids as Enantioselective Promoters for the Asymmetric Aldol Reaction.

ChemInform ◽  
2015 ◽  
Vol 46 (9) ◽  
pp. no-no
Author(s):  
Laura Gonzalez ◽  
Jorge Escorihuela ◽  
Belen Altava ◽  
M. Isabel Burguete ◽  
Santiago V. Luis
Keyword(s):  
Ionic Liquids ◽  
Room Temperature ◽  
Aldol Reaction ◽  
Room Temperature Ionic Liquids ◽  
Asymmetric Aldol ◽  
Asymmetric Aldol Reaction

Proline-Catalyzed Asymmetric Aldol Reaction in Guanidine- Derived Ionic Liquids

2008 ◽  
Vol 350 (9) ◽  
pp. 1267-1270 ◽  
Author(s):  
Jabbar Shah ◽  
Haiko Blumenthal ◽  
Zekarias Yacob ◽  
Jürgen Liebscher
Keyword(s):  
Ionic Liquids ◽  
Aldol Reaction ◽  
Asymmetric Aldol ◽  
Asymmetric Aldol Reaction

Chiral Room Temperature Ionic Liquids as Enantioselective Promoters for the Asymmetric Aldol Reaction

2014 ◽  
Vol 2014 (24) ◽  
pp. 5356-5363 ◽  
Author(s):  
Laura González ◽  
Jorge Escorihuela ◽  
Belén Altava ◽  
M. Isabel Burguete ◽  
Santiago V. Luis
Keyword(s):  
Ionic Liquids ◽  
Room Temperature ◽  
Aldol Reaction ◽  
Room Temperature Ionic Liquids ◽  
Asymmetric Aldol ◽  
Asymmetric Aldol Reaction

scholarly journals Chiral Ionic Liquids Based on L-Cysteine Derivatives for Asymmetric Aldol Reaction

Catalysts ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 47
Author(s):  
Karolina Zalewska ◽  
Małgorzata E. Zakrzewska ◽  
Luis C. Branco
Keyword(s):  
Ionic Liquids ◽  
Aldol Condensation ◽  
Aldol Reaction ◽  
Reaction Medium ◽  
Chiral Molecules ◽  
Asymmetric Aldol ◽  
Chiral Ionic Liquids ◽  
Asymmetric Aldol Reaction ◽  
Aldehydes And Ketones ◽  
Asymmetric Catalyst

Structure, and consequently properties, of ionic liquids can be easily tailored by changing cation/anion combinations and/or attaching functional groups. By grafting enantiopure moieties to the framework of ionic liquid it is possible to prepare bioinspired chiral molecules that can serve as a reaction medium, additive or even asymmetric catalyst. In this context, new chiral ionic liquids (CILs), based on biomolecules, such as aminoacids (L-cysteine derivatives), have been synthesised and tested in asymmetric aldol condensation of aldehydes and ketones. The best results were obtained for CILs composed of S-methyl-L-cysteine cation and bis(trifluoromethane)sulfonimide anion, in the reaction of 2- or 4-nitrobenzaldehyde with acetone or cyclohexanone, giving the aldol product in moderate yields 70–76% and high ee values (up to 96%).

Protonated arginine and lysine as catalysts for the direct asymmetric aldol reaction in ionic liquids

Tetrahedron ◽  
2008 ◽  
Vol 64 (39) ◽  
pp. 9203-9207 ◽  
Author(s):  
Marco Lombardo ◽  
Srinivasan Easwar ◽  
Filippo Pasi ◽  
Claudio Trombini ◽  
Dilip D. Dhavale
Keyword(s):  
Ionic Liquids ◽  
Aldol Reaction ◽  
Asymmetric Aldol ◽  
Asymmetric Aldol Reaction
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