Asymmetric Catalysis with Helical Polymers [PDF]
Chemistry – A European Journal, 2011 AbstractInspired by nature, the use of helical biopolymer catalysts has emerged over the last years as a new approach to asymmetric catalysis. In this Concept article the various approaches and designs and their application in asymmetric catalysis will be discussed.
Gerard Roelfes, Rik P. Megens
openaire +5 more sources
Copper(I)-catalyzed asymmetric alkylation of α-imino-esters
Nature Communications, 2023 Asymmetric alkylation of enolates is one of the most direct and important reactions to prepare α-chiral carbonyl compounds. Except for the classical methods that rely on the use of chiral auxiliaries, asymmetric catalysis emerged as a powerful tool ...
Zong-Ci Liu +3 more
doaj +1 more source
Predicting the Stereoselectivity of Chemical Transformations by Machine Learning [PDF]
arXiv, 2021 Stereoselective reactions (both chemical and enzymatic reactions) have been essential for origin of life, evolution, human biology and medicine. Since late 1960s, there have been numerous successes in the exciting new frontier of asymmetric catalysis.
arxiv
Enantioselective synthesis and application to the allylic imidate rearrangement of amine-coordinated palladacycle catalysts of cobalt sandwich complexes [PDF]
, 2013 The reaction of (η5-(N,N-dimethylaminomethyl)cyclopentadien-yl)(η4-tetraphenylcyclobutadiene)cobalt with sodium tetrachloropalladate and (R)-N-acetylphenylalanine gave planar chiral palladacycle di-μ-chloridebis[(η5-(Sp)-2-(N,N-dimethylaminomethyl ...
Cassar, Doyle J. +5 more
core +1 more source
Continuous-Flow Synthesis of the Nucleobase Unit of Remdesivir
Engineering, 2023 In this work, the nucleobase unit of the antiviral drug remdesivir, 7-bromopyrrolo[2,1-f][1,2,4]triazin-4-amine, was synthesized through five-step continuous flow.
Yongxing Guo +5 more
doaj
Organometallic Complexes of Graphene and Carbon Nanotubes: Introducing New Perspectives in Atomtronics, Spintronics, High Mobility Graphene Electronics and Energy Conversion Catalysis [PDF]
Chem. Mater., 2014, 26, pp 184 to 195, 2014 Here we present an overview of recent fundamental studies on the nature of the interaction between individual metal atoms and metal clusters and the conjugated surfaces of graphene and carbon nanotube with a particular focus on the electronic structure and chemical bonding at the metal-graphene interface.
arxiv +1 more source
Catalytic polymeric nanoreactors : more than a solid supported catalyst [PDF]
, 2012 Polymeric nanostructures can be synthesized where the catalytic motif is covalently attached within the core domain and protected from the environment by a polymeric shell.
Bosman, Liu, Wang, Yan
core +2 more sources
Masses of Heavy Quarkonium states in magnetized matter -- effects of PV mixing and (inverse) magnetic catalysis [PDF]
arXiv, 2022 We study the in-medium masses of the heavy quarkonium (charmonium and bottomonium) states in isospin asymmetric nuclear matter in presence of an external magnetic field. The mass modifications of the heavy quarkonia are obtained from the medium modifications of a scalar dilaton field, $\chi$, calculated within a chiral effective model.
arxiv
Asymmetric Coordination of Single‐Atom Co Sites Achieves Efficient Dehydrogenation Catalysis
Advanced Functional Materials, 2022 Tuning asymmetric coordination of metal single‐atom (SA) sites can provide a new opportunity for optimizing the electronic structure of catalysts to achieve efficient catalysis, however, achieving such controllable design remains a grand challenge ...
Hu Liu +9 more
semanticscholar +1 more source
Stereodivergent, Diels-Alder-initiated organocascades employing α,β-unsaturated acylammonium salts: scope, mechanism, and application. [PDF]
, 2017 Chiral α,β-unsaturated acylammonium salts are novel dienophiles enabling enantioselective Diels-Alder-lactonization (DAL) organocascades leading to cis- and trans-fused, bicyclic γ- and δ-lactones from readily prepared dienes, commodity acid chlorides ...
Abbasov, Mikail E +3 more
core +2 more sources