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Carbopalladation/Suzuki Coupling Cascade for the Generation of Quaternary Centers. Access to Pyrrolo[1,2-b]isoquinolines
(American Chemical Society, 2019-07-29)
A convergent route to pyrrolo[1,2-b]isoquinolines with a quaternary center at C-10 has been
developed, that implies a sequential Pd(0)-catalyzed carbopalladation followed by cross-coupling
reaction with boronic acids. ...
Palladium-Catalyzed Dehydrogenative Coupling: An Efficient Synthetic Strategy for the Construction of the Quinoline Core
(MDPI, 2017-09)
Palladium-catalyzed dehydrogenative coupling is an efficient synthetic strategy for the construction of quinoline scaffolds, a privileged structure and prevalent motif in many natural and biologically active products, in ...
Inter- and intramolecular enantioselective carbolithiation reactions
(Beilstein Institut, 2013-02)
In this review we summarize recent developments in inter- and intramolecular enantioselective carbolithiation reactions carried out in the presence of a chiral ligand for lithium, such as (-)-sparteine, to promote facial ...
Mechanistic Insights in the Mode of Action of Bifunctional Pyrrolidine-Squaramide-derived Organocatalysts
(Wiley-VCH, 2016)
The modes of catalytic action of three squaramide-derived
bifunctional organocatalysts have been investigated using DFT
methods. The [5+2] cycloaddition between oxidopyrilium ylides and
enals has been used as model ...
Organocatalytically Generated Donor − Acceptor Cyclopropanes in Domino Reactions. One-Step Enantioselective Synthesis of Pyrrolo[1,2 ‑ a ]quinolines
(American Chemical Society, 2016-03-18)
An easy and straightforward procedure has been developed for the synthesis of highly enantioenriched pyrrolo-[1,2-a]quinolines through a one-pot process that comprises a domino cyclopropane ring opening/aza-Michael/aldol ...
Organocatalytic Transannular Approach to Stereodefined Bicyclo[3.1.0]hexanes
(American Chemical Society, 2018-03-12)
A diastereodivergent approach to highly substituted bicyclo[3.1.0]hexanes has been developed through a transannular alkylation reaction that builds up the bicyclic core employing asymmetric organocatalysis as the tool for ...
Racemic hemiacetals as oxygen-centered pronucleophiles triggering cascade 1,4-addition/ Michael reaction through dynamic kinetic resolution under iminium catalysis. Development and mechanistic insights
(Royal Society of Chemistry, 2017-04-01)
2-Hydroxydihydropyran-5-ones behave as excellent polyfunctional reagents able to react with enals through oxa-Michael/Michael process cascade under the combination of iminium and enamine catalysis. These racemic hemiacetalic ...
Palladium(II)-catalyzed Intramolecular C-H Alkenylation for the Synthesis of Chromanes
(American Chemical Society, 2019-01-14)
The intramolecular Pd(II)-catalyzed alkenylation of aryl homoallyl ethers constitutes a mild,
versatile, and efficient procedure for the synthesis of highly and diversely substituted chromanes, and
2H-chromenes. The use ...
Kinetic Resolution of Secondary Allyl Boronates and Their Application in the Synthesis of Homoallylic Amines
(Wiley-VCH, 2018-09-02)
Highly enantioenriched, chromatographically-stable secondary allyl boronates featuring a 1,1,2,2-tetraethyl-1,2-ethanediol fragment (Epin) were obtained by kinetic resolution of their racemic mixtures. The Epin group at ...
Chiral Bronsted Acid-Catalyzed Enantioselective alpha-Amidoalkylation Reactions: A Joint Experimental and Predictive Study,
(Wiley VCH, 2016-12)
Enamides with a free NH group have been evaluated as nucleophiles in chiral Bronsted acid-catalyzed enantioselective alpha-amidoalkylation reactions of bicyclic hydroxylactams for the generation of quaternary stereocenters. ...