Results 21 to 30 of about 755,381 (240)

Synthesis of novel phthalimido oxime pseudoesters and evaluation of their cytotoxicity [PDF]

open access: yesJournal of the Serbian Chemical Society, 2020
A series of novel optically pure oxime pseudoesters derivatives were synthesized by the reaction of substitute keto oximes with various N-substituted α-amino acids chlorides in the presence of triethylamine and dichloromethane at 0°C, and their ...
Mehrez Asma   +4 more
doaj   +1 more source

Metal Stereogenicity in Asymmetric Transition Metal Catalysis

open access: yesChemical Reviews, 2023
Chiral transition metal catalysts represent a powerful and economic tool for implementing stereocenters in organic synthesis, with the metal center providing a strong chemical activation upon its interaction with substrates or reagents, while the overall
Philipp S. Steinlandt   +2 more
semanticscholar   +1 more source

DNA‐Based Asymmetric Catalysis [PDF]

open access: yesAngewandte Chemie International Edition, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Gerard Roelfes, Bernard Feringa
openaire   +7 more sources

Nickel-catalyzed direct stereoselective α-allylation of ketones with non-conjugated dienes

open access: yesNature Communications, 2023
The development of efficient and sustainable methods for the construction of carbon-carbon bonds with the simultaneous stereoselective generation of vicinal stereogenic centers is a longstanding goal in organic chemistry.
Yi-Xuan Cao   +2 more
doaj   +1 more source

Huiles essentielles et chiralité moléculaire

open access: yesComptes Rendus. Chimie, 2021
Molecular chirality is a property of the nature and life, it is present everywhere and at all scales of magnitude. A fundamental aspect of molecules that is generally overlooked in scientific aromatherapy yet based on the use of the chemistry of ...
Aribi-Zouioueche, Louisa   +1 more
doaj   +1 more source

Asymmetric catalysis with FLPs

open access: yesChemical Society Reviews, 2023
This review provides an overview of the important progress in FLP-catalyzed asymmetric reactions made over the past 15 years, and both the merits and limitations of FLP-catalysis have been highlighted.
Xiangqing Feng, Wei Meng, Haifeng Du
openaire   +2 more sources

Recent Advances in the Development of Chiral Gold Complexes for Catalytic Asymmetric Catalysis.

open access: yesChemistry - An Asian Journal, 2021
Asymmetric gold catalysis has been rapidly developed in the past ten years. Breakthroughs had been made by rational design and meticulous selection of chiral ligands.
Jia‐Jun Jiang, M. Wong
semanticscholar   +1 more source

New Trends in Asymmetric Catalysis [PDF]

open access: yesCatalysts, 2021
As far back as the mid-nineteenth century, the studies of Louis Pasteur brought to light the essential role of molecular chirality in biology [...]
Schettini R., Sala G. D.
openaire   +2 more sources

Recycling in Asymmetric Catalysis [PDF]

open access: yesAccounts of Chemical Research, 2016
Cyclic reaction networks consisting of an enantioselective product-forming step and a reverse reaction of the undesired enantiomer back to starting reactant are important for the generation of compounds with high enantiomeric purity. In order to avoid an equilibrium racemic state, a unidirectional cyclic process where product formation and regeneration
openaire   +3 more sources

Total Synthesis of Natural Terpenoids Enabled by Cobalt Catalysis

open access: yesFrontiers in Chemistry, 2022
Transition metal catalysis plays an essential role in the total synthesis of natural products. Cobalt-mediated asymmetric catalysis has successfully been used as a primary or a secondary step in the total synthesis of natural products, especially ...
Shu Xiao   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy