Results 41 to 50 of about 395,120 (176)
Recent Advances in Asymmetric Organocatalyzed Conjugate Additions to Nitroalkenes
The asymmetric conjugate addition of carbon and heteroatom nucleophiles to nitroalkenes is a very interesting tool for the construction of highly functionalized synthetic building blocks.
Diego A. Alonso +6 more
doaj +1 more source
Asymmetric reactions of N-heterocyclic carbene (NHC)-based chiral acyl azoliums and azolium enolates
N-Heterocyclic carbene (NHC) organocatalysis has been recognized as a powerful synthetic strategy for the construction of a wide variety of medicinally and biologically important molecules.
Changgui Zhao +2 more
doaj +1 more source
Asymmetric Organocatalysis—A Powerful Technology Platform for Academia and Industry: Pregabalin as a Case Study [PDF]
Enantioselective organocatalysis has quickly established itself as the third pillar of asymmetric catalysis. It is a powerful technology platform, and it has a tremendous impact in both academic and industrial settings.
Pesciaioli, Fabio +17 more
core +3 more sources
Cross-trienamines in Asymmetric Organocatalysis
Cross-conjugated trienamines are introduced as a new concept in asymmetric organocatalysis. These intermediates are applied in highly enantioselective Diels–Alder and addition reactions, providing functionalized bicyclo[2.2.2]octane compounds and γ ...
Karl Anker Jørgensen (1287900) +5 more
core +3 more sources
A stereoselective functionalization method of cyclic imines under mild organocatalytic conditions was developed. Bifunctional cinchona alkaloid catalysts combined with carefully optimized reaction conditions to suppress background reactivity enabled highly enantio‐ and diastereoselective addition reactions of malonates to cyclic imines.
Frederic Kölblin, Helma Wennemers
wiley +2 more sources
Non-Covalent Organocatalyzed Domino Reactions Involving Oxindoles: Recent Advances
The ubiquitous presence of spirooxindole architectures with several functionalities and stereogenic centers in bioactive molecules has been appealing for the development of novel methodologies seeking their preparation in high yields and selectivities ...
Tecla Gasperi +3 more
doaj +1 more source
Halides as versatile anions in asymmetric anion-binding organocatalysis
This review intends to provide an overview on the role of halide anions in the development of the research area of asymmetric anion-binding organocatalysis.
Lukas Schifferer +3 more
doaj +1 more source
Activation of Metal Complexes With Ultrasound Waves for Targeted Anticancer Therapy
Ultrasound enables non‐invasive activation of metal‐based therapeutics deep within tumors. Acoustic cavitation can drive sonodynamic reactive oxygen species generation or mechanochemical metal–ligand bond dissociation, enabling controlled release of bioactive payloads.
Félix Grosjean +3 more
wiley +1 more source
Organocatalytic Formal (3+2+1)‐Cycloaddition of Allenoates, Michael Acceptors, and Carbaldehydes
The use of secondary amine Lewis base organocatalysts allows for the unprecedented activation of allenoates for formal (3+2+1)‐cycloadditions with Michael acceptors and aromatic carbaldehydes. ABSTRACT Employing secondary amines as covalently interacting Lewis basic organocatalysts allows for the activation of electron‐deficient allenes (allenoates ...
David Naderer +5 more
wiley +1 more source
Cyclopropylamines have emerged as powerful photocatalytic building blocks. Upon light‐induced single‐electron oxidation, they undergo strain‐release ring opening to generate distonic iminium radicals that enable diverse transformations, including ring‐opening functionalization, formal [3 + 2] cycloadditions, radical cascades, and asymmetric bond ...
Maria Chiara Cabua +3 more
wiley +1 more source

