Results 61 to 70 of about 8,448 (224)

Recent developments in the asymmetric Reformatsky-type reaction

Beilstein Journal of Organic Chemistry, 2018
This review collects the most important developments in asymmetric Reformatsky-type reactions published since the beginning of 2013, including both diastereoselective methodologies based on the use of chiral substrates and enantioselective catalytic ...
Hélène Pellissier
doaj   +1 more source

Fluorine‐Directed Diastereoselective Iodocyclizations

Angewandte Chemie International Edition, 2007
An inside job: β‐Fluorinated lactones and tetrahydrofurans are synthesized by iodocyclization of various allylic fluorides. The fluorine substituent acts as a highly efficient syn‐stereodirecting group for the ring closure. The experimental results combined with theoretical studies provide evidence in support of an “inside fluoro effect” to account for
Tredwell, M, Luft, J, Schuler, M, Tenza, K, Houk, K, Gouverneur, V   +5 more
openaire   +2 more sources

Diastereoselection:  Introduction [PDF]

Chemical Reviews, 1999
B W, Gung, B, le Noble
openaire   +2 more sources

Tethered Rh(III)-N-(p-Tolylsulfonyl)-1,2-Diphenylethylene-1,2-Diamine Complexes: Efficient Catalysts for Asymmetric Transfer Hydrogenation

SynOpen, 2022
Pierre-Georges Echeverria, Long-Sheng Zheng, Quentin Llopis, Bin He, Anne Westermeyer, Ricardo Molina Betancourt, Phannarath Phansavath, Virginie Ratovelomanana-Vidal   +7 more
doaj   +1 more source

Effect of Reaction Media on Photosensitized [2+2]‐Cycloaddition of Cinnamates

ChemistryOpen, 2020
The outcome of photosensitized [2+2]‐cycloaddition reactions of various cinnamates has been compared in different reaction media, including homogeneous organic solutions under inert conditions, degassed water, and aerated physical gels.
Alex Abramov, Prof. Dr. Oliver Reiser, Dr. David Díaz Díaz   +2 more
doaj   +1 more source

diastereoselectivity

Citation: 'diastereoselectivity' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.08162 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for
openaire   +1 more source

Synthesis of Substituted Oxo-Azepines by Regio- and Diastereoselective Hydroxylation

Molecules, 2017
Substituted seven-membered N-heterocycles are prevalent bioactive epitopes and useful synthons for preparing enzyme inhibitors or molecular recognition systems.
Harold Spedding, Peter Karuso, Fei Liu
doaj   +1 more source

Diastereoselective Transfer Hydrogenation of Cyclic and Bicyclic Ketones over Selected Metal Oxides as Catalysts

Molecules
The diastereoselectivity of the liquid- and vapor-phase Catalytic Transfer Hydrogenation (CTH) of cyclic ketones: x-methylcyclohexanones (x = 2, 3 or 4), 4-t-butylcyclohexanone, and bicyclic ketones: 2-norbornanone, camphor, fenchone, and a tricyclic ...
Marek Gliński, Dorota Armusiewicz, Karolina Łukasik-Kwaśniewska, Michał Materowski, Adam Rułka, Ewa M. Iwanek (nee Wilczkowska), Monika Kucharska   +6 more
doaj   +1 more source

Synthesis of 3-substituted isoxazolidin-4-ols using hydroboration–oxidation reactions of 4,5-unsubstituted 2,3-dihydroisoxazoles

Beilstein Journal of Organic Chemistry, 2020
Isoxazolidines represent a very important class of N/O-containing heterocycles used as the key intermediates in the synthesis of more complex cyclic and acyclic compounds, including various biologically active molecules.
Lívia Dikošová, Júlia Laceková, Ondrej Záborský, Róbert Fischer   +3 more
doaj   +1 more source

Solvent‐Driven Conformational Landscapes of a Tetradentate Schiff Base Ligand and Its Metal Complexes: A Genetic Algorithm–Guided VCD Investigation

Chemistry – A European Journal, EarlyView.
Solvent effects: vibrational circular dichroism (VCD) revealed pronounced solvent‐induced conformational shifts for a tetradentate salen ligand in CDCl3, a solvent generally considered benign. Contrary to the DFT prediction of a single dominant conformer family, quantum cluster growth together with the genetic algorithm guided VCD analysis uncovered ...
Amanda Nhi Tran, Mutasem Alshalalfeh, Colton D. Carlson, Andra Aniţa Radu, Vlad Ţeposu, Joseph Cheramy, Lili Zeng, Hui Zhang, Valentin Paul Nicu, Yunjie Xu   +9 more
wiley   +1 more source