Results 41 to 50 of about 6,457 (248)
A suitable preparation of N-sulfonyl-1,2,3,4-tetrahydroisoquinolines and their ring homologs with a reusable Preyssler heteropolyacid as catalyst [PDF]
, 2010 The preparation of N-sulfonyl-1,2,3,4-tetrahydroisoquinolines, N-sulfonyl-2,3,4,5-tetrahydro-1H-2-benzazepines and N-sulfonyl-1,2,3,4,5,6-hexahydrobenzazocine was catalyzed by a Preyssler heteropolyacid, H₁₄[NaP₅W₃₀O₁₁₀], (PA), supported on silica ...
Autino, Juan Carlos +3 more
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The Chemical Record, EarlyView.The stabilization of precursors substituted with 2‐, 1‐naphthol via partially aromatic ortho‐quinone methide intermediate was tested with different cyclic imines in [4+2] cycloaddition.8‐Hydroxyquinoline as a formal 1‐naphthol analogue in Mannich reaction was tested.The formed Mannich bases substituted with 2‐ and 1‐naphthol, 5‐chloro‐8 ...
Dóra Hegedűs +3 more
wiley +1 more source
Study and characterization of modified silicon surfaces with organic molecules [PDF]
, 2016 Nanostructured thin films and subsequent biofunctionalization of silicon substrates are essential for the development of biosensors devices. The formation of organic monolayers on silicon substrates via Si-C bound allows specific interactions with ...
Contreras-Cáceres, Rafael +5 more
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A hydrazine-free Wolff–Kishner reaction suitable for an undergraduate laboratory [PDF]
, 2016 A Wolff–Kishner reaction that does not require hydrazine has been developed. The reaction sequence has two steps; formation of a carbomethoxyhydrazone from methyl hydrazinocarboxylate and acetophenone, then decomposition of this intermediate by treatment
Cranwell, Philippa B. +1 more
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Advances in Ligand‐Driven Pd‐Catalyzed C─H Functionalizations: Recent Insights and Updates
ChemCatChem, Volume 17, Issue 15, August 7, 2025.The most significant advances in ligand‐driven Pd‐catalyzed organic synthesis over the past two years are presented. Processes involving C─H activation of substrates, avoiding their prefunctionalization are illustrated. Both the activity and selectivity of the catalyst depend on the design of the ligands (pyridones, pyridines, amino acids, phosphines ...
Jesús Moradell +3 more
wiley +1 more source
Synthesis and study of biological activity of tetrahydro-1H-[3]-benzazepines [PDF]
, 2017 The 3-Benzazepines are an important class of compounds in drug discovery due to their biological activity such as analgesic, antihypertensive or anticancer properties as well as dopaminergic or antidopaminergic activity. In particular, the tetrahydro-1H-[
Díaz, Amelia +4 more
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British Journal of Pharmacology, Volume 182, Issue 11, Page 2503-2523, June 2025.Abstract Background and Purpose Sex‐dependent vascular effects of transient receptor potential (TRP) channels and sex dimorphism in migraine are not yet fully characterized. We investigated the differential vasoactive effects of TRP ankyrin 1 (TRPA1), TRP melastatin 3 (TRPM3) and TRP vanilloid 1 (TRPV1) channels, their pharmacological mechanism(s), and
Eduardo Rivera‐Mancilla +7 more
wiley +1 more source
Synthesis of bioactive compounds. Studies of their attachment to nanoparticles [PDF]
, 2017 The 1-aryl tetrahydroisoquinolines have attracted great attention in medicinal chemistry due to their biological activity. These compounds present antitumor, anti-HIV and antibacterial activities.
Díaz, Amelia +4 more
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Asian Journal of Organic Chemistry, Volume 14, Issue 3, March 2025.This review presents an analysis of ten recent total syntheses of cephalotaxine‐type alkaloids published between 2021 and 2024. The structural diversification strategies developed during this period are described. Additionally, a new structural classification system for this alkaloid class is proposed.
Yeju Oh, Anagha Reneesh, Hongjun Jeon
wiley +1 more source
Enantioselective palladium(0)-catalyzed C-H arylation strategy for chiral heterocycles [PDF]
, 2017 Transition-metal-catalyzed C-H functionalizations have emerged as complementary and powerful tools to access molecular complexity from widely available starting materials.
Cramer, Nicolai, Saget, Tanguy
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