Results 131 to 140 of about 46,343 (254)

PNN Acetate Ruthenium(II) Complexes as Active Catalysts for Fatty Ester Hydrogenation

open access: yesChemSusChem, Volume 19, Issue 16, 27 August 2026.
The acetate PNN ruthenium complexes efficiently catalyze the hydrogenation of methyl decanoate (model for the FAMEs reduction) to 1‐decanol without solvents and under mild reaction conditions. Selective hydrogenation of long‐chain and aromatic methyl‐ and ethyl esters has been achieved with trans‐[Ru(η1‐OAc)2(PNNG)(PPh3)] at extremely high S/C (up to ...
Maurizio Ballico   +6 more
wiley   +1 more source

Curcumin‐Enabled Metal‐Free Photocatalytic Oxidation of Aryl‐ and Alkyl‐methanamines to Imines Under Green Conditions

open access: yesChemSusChem, Volume 19, Issue 16, 27 August 2026.
Curcumin, a natural polyphenol, enables a fully bio‐based and metal‐free photocatalytic system for the aerobic oxidation of aryl‐ and alkyl‐methanamines to imines under blue light. Using 2‐methyltetrahydrofuran (2‐MeTHF) as a renewable solvent and molecular oxygen as the sole oxidant, the protocol affords up to 98% yield.
Tommaso Castiglia   +7 more
wiley   +1 more source

Palladium‐Catalyzed Alkynylation of Allylic Carbonates With Terminal Alkynes: Stereoretentive Access to 1,4‐Enynes and Diarylalkenyl Propargylic Frameworks

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 16, 18 August 2026.
A palladium‐catalyzed alkynylation of cinnamyl carbonates with terminal alkynes provides efficient and stereoretentive access to 1,4‐enynes, enabling the synthesis of challenging diarylalkenyl propargylic frameworks. A mild and efficient palladium‐catalyzed alkynylation of 3‐aryl, 3,3‐diaryl, and aliphatic allylic carbonates with terminal alkynes has ...
Yuri Gazzilli   +7 more
wiley   +1 more source

The Asymmetric Self‐Replicative Alkylation of N‐Arylaldimines Using Organolithium Reagents

open access: yesChemistry – A European Journal, Volume 32, Issue 31, 18 August 2026.
Here, we report a new asymmetric autoinductive reaction; the addition of nBuLi to N‐arylaldimines to form chiral lithium amides. The reaction proceeds with full conversion and complete transfer of chirality, representing the first example of an asymmetric autoinductive reaction with organolithium reagents.
Anka Hagelschuer   +2 more
wiley   +1 more source

Radical Sampling Enabled Saturated N-Heterocycle Cyclization. [PDF]

open access: yesJ Am Chem Soc
Cai Q   +6 more
europepmc   +1 more source

N-Heterocyclic Carbene (NHC) Catalysis in Enzymatic Organic Synthesis. [PDF]

open access: yesCoord Chem Rev
Chen X   +9 more
europepmc   +1 more source

Synthesis and Bioactivity Studies of Benzimidazole-Chalcone Hybrids. [PDF]

open access: yesMolecules
Makgoathana HD   +4 more
europepmc   +1 more source

Characterization of Grape Cane Stilbenoids and Their Photo‐Degradation Products by HPLC‐DAD Coupled With Trapped Ion Mobility Spectrometry and High‐Resolution Tandem Mass Spectrometry

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 15, 15 August 2026.
ABSTRACT Rationale Bioactive (E)‐stilbenoids in vine extracts are prone to light‐induced transformation into the respective (Z)‐isomers and further degradation products, often resulting in a loss of bioactivity. We sought to study stilbenoid degradation beyond that of the well‐researched resveratrol due to the high diversity of stilbenoids in nature ...
Paul Besrukow   +3 more
wiley   +1 more source

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