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Carlos A. M. Afonso

Researcher at University of Lisbon

Publications -  434
Citations -  15782

Carlos A. M. Afonso is an academic researcher from University of Lisbon. The author has contributed to research in topics: Ionic liquid & Catalysis. The author has an hindex of 57, co-authored 413 publications receiving 13891 citations. Previous affiliations of Carlos A. M. Afonso include University of Porto & Universidade Nova de Lisboa.

Papers
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Journal ArticleDOI

Efficient Tandem Morita—Baylis—Hillman/Double Cross-Aldol Reaction Between Cyclic Enones and Formaldehyde Promoted by N-Methylpyrrolidine.

Krassimira P. Guerra, +3 more
- 30 Aug 2011 - 
TL;DR: In this article, a domino Morita-Baylis-Hillman cross-aldol addition reaction in water with cyclic enones and aldehydes is presented.
Journal ArticleDOI

Simple Transformation of Crystalline Chiral Natural Anions to Liquid Medium and Their Use to Induce Chirality.

Luís C. Branco, +4 more
- 10 Oct 2006 - 
TL;DR: In this paper, the tetra-n-hexyl-dimethylguanidinium cation with readily available chiral anions is used as an asymmetric inducing agent as demonstrated for catalytic Rh(II) carbenoid C-H insertion and Sharpless dihydroxylation.
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Clean Osmium-Catalyzed Asymmetric Dihydroxylation of Olefins in Ionic Liquids and Supercritical CO2 Product Recovery.

Luís C. Branco, +4 more
- 31 May 2005 - 
TL;DR: The combination of ionic liquids (ILs) as solvents in the asymmetric Sharpless dihydroxylation (AD) with the use of scCO2 in the separation process allows a very simple, efficient, clean and robust system for the reuse of the AD catalytic system as mentioned in this paper.
Journal ArticleDOI

NHC Catalyzed Direct Addition of HMF to Diazo Compounds: Synthesis of Acyl Hydrazones with Antitumor Activity.

João P. M. António, +6 more
- 01 Feb 2015 - 
TL;DR: A direct access to an unexplored family of 5-hydroxymethylfurfural (HMF)-based acylhydrazones displaying antitumor activity is given in this article.
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Asymmetric Synthesis of trans-4,5-Dioxygenated Cyclopentenone Derivatives by Organocatalyzed Rearrangement of Pyranones and Enzymatic Dynamic Kinetic Resolution.

João P. Nunes, +5 more
- 02 Aug 2011 - 
TL;DR: In this article, the DABCO-catalyzed ring contraction of pyranones (I) was successfully coupled with the lipase-caralyzed dynamic kinetic resolution to give enantioenriched cyclopentenones (III) in a one-pot two-step procedure.