Results 101 to 110 of about 15,657 (274)

Isoquinolines from the Roots of Thalictrum flavum L. and Their Evaluation as Antiparasitic Compounds

open access: yesMolecules, 2010
Alkaloids from Thalictrum flavum L. (Ranuculaceae) growing in the Loire valley (France) were isolated and evaluated for their antiplasmodial and leishmanicidal activities.
Pascal Richomme   +5 more
doaj   +1 more source

Syntheses, transformations and applications of aminonaphthol derivatives prepared via modified Mannich reactions [PDF]

open access: yes, 2013
A special alteration is the three-component modi fi ed Mannich reaction (mMR), in which formaldehyde is replaced by an aromatic aldehyde, the secondary amine by ammonia, and the C e H acid by an electron-rich aromatic compound such as 1- or 2 ...
Fülöp, Ferenc, Szatmári, István
core   +1 more source

Visible Light–Induced Decarboxylative Radical Addition of Heteroaromatic Carboxylic Acids to Alkenes at Room Temperature in Two‐Molecule Photoredox System

open access: yesChemistryOpen, EarlyView.
The photoinduced decarboxylative radical addition of aryl carboxylic acids, including heteroaromatic carboxylic acids, to electron‐deficient alkenes is achieved in a two‐molecule photoredox system using a combination of biphenyl and 9,10‐dicyanoanthracene without heating or base.
Daisuke Suzuki   +5 more
wiley   +1 more source

A DNP‐Supported Solid‐State NMR Approach to Study Nucleic Acids In Situ Reveals Berberine‐Stabilized Hoogsteen Structures in Mitochondria

open access: yesAngewandte Chemie, Volume 137, Issue 21, May 19, 2025.
Mitochondria are vital for energy production and rely on intricate nucleic acid structures to regulate gene expression. Using DNP‐ssNMR (dynamic nuclear polarization solid‐state NMR), we observed G‐quadruplex formation in intact mitochondria treated with berberine.
Michaela Dzurov Krafčíková   +8 more
wiley   +2 more sources

Synthesis of Pyrrolo[2,1-a]isoquinolines by Multicomponent 1,3-Dipolar Cycloaddition

open access: yesMolecules, 2013
Pyrrolo[2,1-a]isoquinoline derivatives were synthesized by one-pot three-component reactions starting from isoquinoline, 2-bromoacetophenones and different non-symmetrical acetylenic dipolarophiles using 1,2-epoxypropane as solvent.
Marcel Mirel Popa   +4 more
doaj   +1 more source

Advances in Electrocatalyzed Water Oxidation by Molecular Complexes of First Row Transition Metals

open access: yesThe Chemical Record, EarlyView.
The review highlights recent advances in homogeneously electrocatalyzed water oxidation mediated by earth abundant transition metal complexes, framed through a comparative analysis with heterogeneous systems and the efficiencies of noble metal catalysts.
Chiara Lenzi   +5 more
wiley   +1 more source

Ion‐Pair Hydrogen Atom Transfer Catalysis Enables Cr‐Catalyzed Allylation of Ketones Using Hydrocarbon Alkenes

open access: yesAngewandte Chemie, Volume 137, Issue 21, May 19, 2025.
We developed the allylation of ketones using simple alkenes promoted by a chromocene catalyst and an ion‐pair hydrogen atom transfer (IP‐HAT) catalyst. This catalytic system can be applied to a wide range of ketones, including aliphatic ketones. The reaction proceeds under mild conditions with high functional group tolerance.
Suguru Arii   +4 more
wiley   +2 more sources

TRANSFORMATION OF 2-BENZOYLAMINO-1-(?-NAPHTHYL)PROPAN-1-OL INTO 4-METHYL-1-PHENYL BENZO[f] ISOQUINOLINE RATHER THAN ITS 3-SUBSTITUTED ISOMER [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2001
The necessary conditions to transform hydroxyamide (1) and 2-oxazolines (2, 3) into 3- or 4-methyl benzo[f] isoquinolines (4, 5) has been established. The mechanism of these reactions has been proposed claiming the existence of the protonated 2-oxazoline
doaj  

Australian guidelines for equine internal parasite management

open access: yesAustralian Veterinary Journal, Volume 103, Issue 4, Page 151-158, April 2025.
Over the past few decades, the emergence of resistance amongst intestinal parasites of horses to all available anthelmintic classes has emphasised the need for a paradigm shift in parasite control approaches within the Australian equine industry. Findings of a recent Australia‐wide research project have provided new insights into intestinal parasites ...
A Beasley   +12 more
wiley   +1 more source

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