Results 81 to 90 of about 19,176 (260)

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

Intra- and Intermolecular Diastereoselectivity of 5-Hydroxy-2-adamantylidene^†

, 2016
Intra- and Intermolecular Diastereoselectivity of 5-Hydroxy-2-adamantylidene†
Udo H. Brinker (1470559), Michael M. Bobek (2325373)   +1 more
core   +1 more source

Monovalent chiral-at-copper complexes: halide-controlled diastereoselectivity [PDF]

, 2012
An unusual example of diastereoselectivity has been observed in Cu(κ3-P,C,P′-1)X complexes where 1 is an asymmetric tridentate ligand containing a bicyclic NHC framework and X is a halide.
Newman, Paul David, Cavell, Kingsley John, Kariuki, Benson   +2 more
core   +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

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

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

Facile Chemical Access to Biologically Active Norcantharidin Derivatives from Biomass

Molecules, 2017
Reductive amination of 2,5-diformylfuran (DFF) was used to implement the transition from bio-derived 5-hydroxymethylfurfural (HMF) to pharmaceuticals.
Konstantin I. Galkin, Fedor A. Kucherov, Oleg N. Markov, Ksenia S. Egorova, Alexandra V. Posvyatenko, Valentine P. Ananikov   +5 more
doaj   +1 more source

Additions to Fe(CO)₃−Dienal Complexes:  Dependence of Diastereoselectivity on Lewis Acid

, 2016
Lewis acid mediated additions to Fe(CO)3−2,4-dienal complexes are explored. Silyl enol ether and allylstannane nucleophiles both undergo aldehyde addition with good diastereoselectivity.
Daniel F. Harvey (3031866), Victor B. Selchau (3048639)   +1 more
core   +1 more source

Fusicoccin Ring System by [4 + 4] Cycloaddition. Control of Diastereoselectivity through Hydrogen Bonding

, 2016
Fusicoccin Ring System by [4 + 4] Cycloaddition.
Scott McN. Sieburth (1538176), Kevin F. McGee (1621459), Taleb H. Al-Tel (2134228)   +2 more
core   +1 more source