Results 61 to 70 of about 3,258 (176)

Recent advances in organocatalytic atroposelective reactions

Beilstein Journal of Organic Chemistry
Axial chirality is present in a variety of naturally occurring compounds, and is becoming increasingly relevant also in medicine. Many axially chiral compounds are important as catalysts in asymmetric catalysis or have chiroptical properties. This review
Henrich Szabados, Radovan Šebesta
doaj   +1 more source

Advances in Organic and Organic-Inorganic Hybrid Polymeric Supports for Catalytic Applications

Molecules, 2016
In this review, the most recent advances (2014–2016) on the synthesis of new polymer-supported catalysts are reported, focusing the attention on the synthetic strategies developed for their preparation.
Anna Maria Pia Salvo, Francesco Giacalone, Michelangelo Gruttadauria   +2 more
doaj   +1 more source

Cyclopropylamine‐Derived Distonic Iminium Radicals: Photoinduced Strategies in Chemo‐ and Stereo‐Selective Synthesis

Chemistry – A European Journal, EarlyView.
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, Alberto Luridiana, Francesco Secci, Emanuele Cocco   +3 more
wiley   +1 more source

Asymmetric Organocatalysis—A Game Changer [PDF]

Chemistry International, 2022
Abstract This year’s Nobel Prize in Chemistry was awarded to Benjamin List and David MacMillan “for the development of asymmetric organocatalysis.” IUPAC congratulates the laureates for their achievements.
openaire   +1 more source

Beyond canonical asymmetric induction in phosphine organocatalysis [PDF]

RSC Advances
Phosphine organocatalysis has emerged as a formidable and transformative platform for engineering reaction manifolds that depart from classical models of asymmetric induction, enabling cascade cyclizations to proceed through distinctive stereoelectronic ...
Archana Vijayakumar, R. Bharath Krishna, M Manod, Adithya Appus, Chithra Mohan   +4 more
doaj   +1 more source

Advances on Greener Asymmetric Synthesis of Antiviral Drugs via Organocatalysis

Pharmaceuticals, 2021
Viral infections cause many severe human diseases, being responsible for remarkably high mortality rates. In this sense, both the academy and the pharmaceutical industry are continuously searching for new compounds with antiviral activity, and in ...
Everton M. da Silva, Hérika D. A. Vidal, Arlene G. Corrêa   +2 more
doaj   +1 more source

Rhodium‐Catalyzed Synthesis of Enantioenriched α‐Substituted Primary Amines Through Asymmetric Transfer Hydrogenation

Chemistry – A European Journal, EarlyView.
Enantioenriched α‐substituted primary amines are efficiently prepared by rhodium‐catalyzed asymmetric transfer hydrogenation of ortho‐hydroxyaryl N─H imines under mild conditions using a low catalyst loading and ammonium formate as the hydrogen source in high yields (up to 99%) and enantioselectivities (up to 99% ee).
Chonghuo Liu, Guillaume Lefèvre, Qin Yin, Phannarath Phansavath, Virginie Ratovelomanana‐Vidal   +4 more
wiley   +1 more source

Circular and Bio‐Sourced Polymers for Energy Applications: Natural Feedstocks, Recycling, and Upcycling Routes

EcoEnergy, EarlyView.
This review provides a critical comparative analysis of circular and bio‐sourced polymers for energy storage, systematically evaluating natural feedstocks alongside recycling and upcycling strategies for battery components. Key structure–property–performance relationships and inherent trade‐offs between sustainability metrics and electrochemical ...
Priyank Sinha, Amul Jain, Koushik Mahata, Sanjib Banerjee   +3 more
wiley   +1 more source

Synthesis and Structural Study of Iodonium Ylides Derived From 2‐Iodosylbenzenesulfonic Acid: Reagents for Preparation of Annulated Thiazoles

European Journal of Organic Chemistry, EarlyView.
New ylides of two different types were prepared by reaction of 2‐iodosylbenzenesulfonic acid with the corresponding 1,3‐cyclohexanediones under acidic or basic conditions. These compounds have a typical for iodonium ylides structure with the CIC angles 94.18° –97.25° and the IC bond distances between 2.08 and 2.13 Å.
Dmitry M. Noskov, Matvey K. Shurikov, Irina A. Mironova, Natalia S. Soldatova, Akira Yoshimura, Akio Saito, Mekhman S. Yusubov, Viкtor V. Zhdankin   +7 more
wiley   +1 more source

Enantioselective homogeneous catalysts for the synthesis of fluorinated organic compounds [PDF]

, 2012
This thesis is divided into three main results chapters that reflect the path my research took. In the first results chapter, the first organocatalyst for the carbonyl-ene reaction was discovered and found to give high conversion using 1,3-bis(3,5-bis ...
Jones, Charlotte E. S.
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