Results 91 to 100 of about 7,931 (260)

Flow Chemistry Meets Green Solvents: Telescoped Synthesis of Triazolyl Phosphoramidates and Phosphinamides in γ‐Valerolactone

open access: yesChemSusChem, Volume 19, Issue 9, 14 May 2026.
A telescoped three‐step continuous flow process enables the synthesis of organophosphorus 1,2,3‐triazoles in the biomass‐derived solvent γ‐valerolactone (GVL). The sequence integrates N‐phosphorylation, azidation, and Cu(I)‐catalyzed azide–alkyne cycloaddition (CuAAC), followed by in‐line copper removal, giving diverse triazoles in good to high overall
Viktória Gerő   +3 more
wiley   +1 more source

Ruthenium-catalyzed azide alkyne cycloaddition reaction: scope, mechanism and applications [PDF]

open access: yes, 2016
The ruthenium-catalyzed azide alkyne cycloaddition (RuAAC) affords 1,5-disubstituted 1,2,3-triazoles in one step and complements the more established copper-catalyzed reaction providing the 1,4-isomer.
Akimova G.   +23 more
core   +2 more sources

Asymmetric Transformations of α,β‐Unsaturated Oxazolidinones Catalyzed by C2‐Symmetric Chiral Iron Triad Complexes

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 9, 5 May 2026.
This review highlights the evolution of highly enantioselective oxazolidinone transformations enabled by C2‐symmetric ligands, with emphasis on chiral iron triad complexes as cost‐effective, environmentally benign alternatives to late‐transition‐metal catalysts.
Arthur David, Thierry Ollevier
wiley   +1 more source

Recent advances in the catalytic asymmetric 1,3-dipolar cycloaddition of azomethine ylides [PDF]

open access: yes, 2014
Catalytic asymmetric 1,3-dipolar cycloadditions of azomethine ylides have turned out to be one of the most efficient methods for the preparation of enantioenriched pyrrolidines.
Adrio, Javier, Carretero, Juan C.
core   +2 more sources

Structure and Mechanism of PhdC, a Prenylated‐Flavin Maturase

open access: yesProteins: Structure, Function, and Bioinformatics, Volume 94, Issue 5, Page 1019-1029, May 2026.
ABSTRACT Prenylated flavin mononucleotide (prFMN) is a modified flavin cofactor required by the UbiD family of (de)carboxylase enzymes. While the reduced prFMNH2 form is produced by the flavin prenyltransferase UbiX, the corresponding two‐electron oxidized prFMNiminium form is required to support UbiD catalysis. Thus, oxidative maturation of prFMNH2 is
Dominic R. Whittall   +4 more
wiley   +1 more source

Cyclooctyne-based reagents for uncatalyzed click chemistry: A computational survey [PDF]

open access: yes, 2009
With the goal of identifying alkyne-like reagents for use in click chemistry, but without Cu catalysts, we used B3LYP density function theory (DFT) to investigate the trends in activation barriers for the 1,3-dipolar cycloadditions of azides with various
Chenoweth, David   +2 more
core   +1 more source

Synthesis of 1,4-Disubstituted Mono and Bis-triazolocarbo-acyclonucleoside Analogues of 9-(4-Hydroxybutyl)guanine by Cu(I)-Catalyzed Click Azide-Alkyne Cycloaddition [PDF]

open access: yes, 2011
A series of novel mono-1,2,3-triazole and bis-1,2,3-triazole acyclonucleoside analogues of 9-(4-hydroxybutyl)guanine was prepared via copper(I)-catalyzed 1,3-dipolar cycloaddition of N-9 propargylpurine, N-1-propargylpyrimidines/as-triazine with the ...
Engels, Joachim W.   +2 more
core   +2 more sources

Recent Developments in Sustainable Solubilization

open access: yesChemSusChem, Volume 19, Issue 8, 28 April 2026.
We highlight several recent developments in sustainable solubilization. Particular attention is given to the use of bio‐based solvents derived from renewable resources, the strategic use of water as a solvent, and alternative, sustainable solubilizers such as hydrotropes.
Eva Müller, Werner Kunz
wiley   +1 more source

Fused 1,5-benzothiazepines from o-aminothiophenol and its derivatives as versatile synthons

open access: yesActa Chimica Slovenica, 2014
This review describes the reactions of o-aminothiophenol and its derivatives as building blocks for the synthesis of polyfunctionalised 1,5-benzothiazipines with pharmacological interest.
Batchu Chandra Sekhar
doaj  

The Relationship Between Catalyst and Solvent in Hydrogenation via Condensed Phase Heterogeneous Catalysis

open access: yesChemSusChem, Volume 19, Issue 8, 28 April 2026.
Heterogeneous catalysis has historically been developed in the gas phase, however, we have found it pertinent to highlight solvent effects that must be accounted for in liquid environments. Condensed phase catalysis, like that in biomass, petroleum and the conversion of CO2, stands to benefit from the typically overlooked discussion regarding the ...
Jim B. Floyd   +3 more
wiley   +1 more source

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