Results 61 to 70 of about 67,862 (282)
Nature CommunicationsDeveloping facile and direct synthesis routes for enantioselective construction of cyclic π-conjugated molecules is crucial. However, originate chirality from the distorted structure around heptagon-containing polyarenes is largely overlooked, the ...
Huan Zhang +5 more
doaj +1 more source
Nature Communications, 2018 Catalytic enantioselective synthesis of trifluoromethylthiolated molecules remains a challenge. Here, the authors report a bifunctional selenide-catalyzed approach for the synthesis of structurally complex chiral trifluoromethylthiolated ...
Jie Luo +3 more
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Nature Communications, 2021 Chiral acetylenic derivatives are found in many bioactive compounds and are versatile building blocks in organic synthesis. Here, the authors report a mild enantioselective nickel/Lewis acid-catalyzed asymmetric propargylic substitution reaction which is
Xihao Chang +3 more
doaj +1 more source
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 Synthesis of 5-epi-Citreoviral Using Ruthenium-Catalyzed Asymmetric Ring-Closing Metathesis [PDF]
, 2009 Chiral ruthenium olefin metathesis catalysts can perform asymmetric ring-closing reactions in ≥90% ee with low catalyst loadings. To illustrate the practicality of these reactions and the products they form, an enantioselective total synthesis of 5-epi ...
Funk, Timothy W.
core +2 more sources
Atroposelective Construction of Axially Chiral Tetraarylethenes Via NHC‐Catalyzed Desymmetrization
Advanced Science, EarlyView.We report the first NHC‐catalyzed atroposelective synthesis of axially chiral TAEs via oxidative desymmetrization of prochiral TAE dialdehydes. This catalytic strategy operates under mild conditions and accommodates a broad range of phenolic and nitrogen nucleophiles, delivering diverse axially chiral TAEs in good yields and up to 99% ee.
Yang‐Ze Zheng +6 more
wiley +1 more source
Enantioselective desymmetrization strategy of prochiral 1,3-diols in natural product synthesis
Beilstein Journal of Organic ChemistryEnantioselective desymmetrization is employed as a powerful tool for the creation of chiral centers. Within this scope, the enantioselective desymmetrization of prochiral 1,3-diols, which generates chiral centers by enantioselective functionalization of ...
Lihua Wei +3 more
doaj +1 more source
Asymmetric total synthesis of yuzurimine-type Daphniphyllum alkaloid (+)-caldaphnidine J
Nature Communications, 2020 Despite being known for more than 50 years, yuzurimine-type alkaloids have not been accessed by total synthesis. Here, the authors report the first enantioselective total synthesis of (+)-Caldaphnidine J, a highly complex yuzurimine-type Daphniphyllum ...
Lian-Dong Guo +6 more
doaj +1 more source
Modification of chiral dimethyl tartrate through transesterification : immobilisation on POSS and enantioselectivity reversion in Sharpless asymmetric epoxidation [PDF]
, 2010 Modification of dimethyl tartrate has been investigated through transesterification with aminoalcohols to provide reactive functionalities for the covalent bonding of chiral tartrate to polyhedral oligomeric silsesquioxanes.
García, Rafael A. +4 more
core +1 more source
Topological Materials and Related Applications
Advanced Electronic Materials, EarlyView.This review covers topological materials—including topological insulators, quantum valley Hall and quantum spin Hall insulators, and topological Weyl and Dirac semimetals—as well as their most recent advancements in fields such as spintronics, electronics, photonics, thermoelectrics, and catalysis.
Carlo Grazianetti +9 more
wiley +1 more source