Results 81 to 90 of about 146,224 (211)

Radical Retrosynthesis of Natural Products Enabled by Iron‐Based Reductive Olefin Coupling

open access: yesAngewandte Chemie Novit, Volume 2, Issue 1, March 2026.
This review highlights iron‐catalyzed reductive olefin coupling (ROC)—a strategy for C─C bond formation driven by metal‐hydride hydrogen atom transfer (MHAT)—as a key tool in natural products synthesis. This review surveys dozens of total syntheses employing ROC‐based strategies, highlighting its power to forge strained rings, quaternary centers, and ...
Griffin L. Barnes   +2 more
wiley   +1 more source

Antioxidant activity of 2,6-dimethyl-3,5-dialkoxycarbonyl-1,4-dihydropyridines in metal-ion catalyzed lipid peroxidation

open access: yesCzech Journal of Food Sciences, 2001
Antioxidants with 1,4-dihydropyridine structure were investigated as a less harmful alternative to synthetic phenolic antioxidants in liposomes under conditions simulating food storage.
G. Tirzitis, D. Tirzite, Z. Hyvonen
doaj   +1 more source

1,4-Dihydropyridines: Reactivity of nitrosoaryl and nitroaryl derivatives with alkylperoxyl radicals and ABTS radical cation [PDF]

open access: yes, 2004
In the present paper, a direct quenching of radical species by a number of synthesized nitrosoaryl 1,4-dihydropyridines and their parent nitroaryl 1,4-dihydropyridines was determined in aqueous media at pH 7.4. These two series of compounds were compared
Squella Serrano, Juan   +5 more
core  

Regio and enantioselective synthesis of 4-carbomethoxymethyl-1,4 dihydropyridines

open access: yes, 1994
Regio and enantioselective 1,4 addition of ethoxyvinyl copper reagent on a pyridine bearing in position 3 a chiral aminal is described.
Raussou, Sabine   +9 more
core   +1 more source

Synthesis of new 4-nitrosophenyl-1,4-dihydropyridines of pharmacological interest [PDF]

open access: yes, 2003
The synthesis and characterization of a series of 4-nitrosophenyl-1.4-dihydropyridines derived from the respective nitro compounds of pharmacological interest is described.
Squella Serrano, Juan   +3 more
core  

De Novo Synthesis of 1,4-Dihydropyridines and Pyridines

open access: yes, 2012
An efficient and general method for the synthesis of 1,4-dihydropyridines and pyridines based on a lithiation/isomerization/intramolecular carbolithiation sequence is reported. This procedure provides an efficient, divergent, and straightforward entry to
Rammah, B. Mohamed   +4 more
core   +1 more source

Chemoenzymatic Synthesis of Enantiopure 1,4‐Dihydropyridine Derivatives

open access: yesChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Sobolev, A.   +3 more
openaire   +2 more sources

De Novo Synthesis of 1,4-Dihydropyridines and Pyridines

open access: yes, 2016
An efficient and general method for the synthesis of 1,4-dihydropyridines and pyridines based on a lithiation/isomerization/intramolecular carbolithiation sequence is reported. This procedure provides an efficient, divergent, and straightforward entry to
Gwilherm Evano (1355874)   +4 more
core   +1 more source

Rearrangement of 3,5-dicyano-1,4-dihydropyridines to densely functionalized cyclopentadienes

open access: yes, 2008
3,5-Dicyano-1,4-dihydropyridines underwent ring contraction to give functionalized cyclopentadienes upon treatment with trifluoroacetic anhydride. © 2008 Elsevier Ltd.
Ponticelli, Fabio   +3 more
core   +1 more source

Substituent Effect on the Photolability of 4-Aryl-1,4-Dihydropyridines [PDF]

open access: yes, 2014
Artículo de publicación ISIThe electronic nature of substituents attached to the 4-aryl moiety of 1,4-dihydropyridines strongly affects the photophysical and photochemical behavior of these family of compounds.
García, Cristóbal   +7 more
core   +1 more source

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