Modern Synthetic Strategies with Organoselenium Reagents: A Focus on Vinyl Selenones
Molecules, 2021 In recent years, vinyl selenones were rediscovered as useful building blocks for new synthetic transformations. This review will highlight these advances in the field of multiple-bond-forming reactions, one-pot synthesis of carbo- and heterocycles ...
Martina Palomba +3 more
doaj +1 more source
Enantioselective Orientation of Chiral Molecules Induced by Terahertz Pulses with Twisted Polarization [PDF]
Phys. Rev. Research 3, 013249 (2021), 2020 Chirality and chiral molecules are key elements in modern chemical and biochemical industries. Individual addressing, and the eventual separation of chiral enantiomers has been and still is an important elusive task in molecular physics and chemistry, and a variety of methods has been introduced over the years to achieve this goal.
arxiv +1 more source
New development in the enantioselective synthesis of spiro compounds.
Chemical Society Reviews, 2018 The enantioselective synthesis of spirocycles has long been pursued by organic chemists. Despite their unique 3D properties and presence in several natural products, the difficulty in their enantioselective synthesis makes them underrepresented in ...
A. Ding +4 more
semanticscholar +1 more source
Enantioselective Total Synthesis of (–)-Myrifabral A and B [PDF]
, 2020 A catalytic enantioselective approach to the Myrioneuron alkaloids (−)-myrifabral A and (−)-myrifabral B is described. The synthesis was enabled by a palladium-catalyzed enantioselective allylic alkylation, that generates the C(10) all-carbon quaternary ...
Bartberger, Michael D. +3 more
core
Strong and Confined Acids Enable a Catalytic Asymmetric Nazarov Cyclization of Simple Divinyl Ketones [PDF]
, 2019 We report a catalytic asymmetric Nazarov cyclization of simple, acylic, alkyl-substituted divinyl ketones using our recently disclosed strong and confined imidodiphosphorimidate Brønsted acids.
De, C. +4 more
core +2 more sources
Enantioselective optical forces in gain-functionalized single core-shell chiral nanoparticles [PDF]
arXiv, 2022 We propose a gain-assisted enantioselective scheme in dye-doped chiral particles, demonstrating optical pulling and pushing forces that can be tuned using externally controllable parameters. By controlling the concentration of dye molecules and pumping rate, we achieve all-optical chiral resolution of racemic mixtures and enantioselection of small ...
arxiv
Polarized radiation and the Emergence of Biological Homochirality on Earth and Beyond [PDF]
, 2021 It has been proposed that spin-polarized cosmic radiation can induce asymmetric changes in helical biopolymers that may account for the emergence of biological homochirality. The parity violation in the weak interaction has direct consequences on the transport of polarization in cosmic ray showers.
arxiv +1 more source
Copper Hydride Catalyzed Enantioselective Synthesis of Axially Chiral 1,3-Disubstituted Allenes
Journal of the American Chemical Society, 2019 The general enantioselective synthesis of axially chiral disubstituted allenes from prochiral starting materials remains a long-standing challenge in organic synthesis.
Liela Bayeh-Romero, S. Buchwald
semanticscholar +1 more source
Nature Communications, 2017 Enantioselective synthesis of six-membered oxacycles with multiple stereogenic centres is essential for the discovery of new therapeutic agents. Here the authors show organocatalytic cycloetherification for the highly enantio- and diastereoselective ...
Naoki Yoneda +4 more
doaj +1 more source
Enantioselection and chiral sorting of single microspheres using optical pulling forces [PDF]
arXiv, 2021 We put forward a novel, twofold scheme that enables at the same time all-optical enantioselection and sorting of single multipolar chiral microspheres based on optical pulling forces exerted by two non-collinear, nonstructured, circularly-polarized light sources.
arxiv