Results 101 to 110 of about 8,390 (243)

Emerging Trends in Organic Photoreactions Utilizing Disulfides

European Journal of Organic Chemistry, Volume 29, Issue 21, 4 June 2026.
Disulfides are versatile, nontoxic alternatives to metal photocatalysts. This review explores their role as photoactivated thiyl‐radical precursors and bifunctional catalysts (HAT/electron shuttling) in diverse transformations. Strategies for electronic tuning and development into recyclable heterogeneous materials are highlighted for sustainable ...
Sunil Kumar, Bolormaa Bayarkhuu, Hong Y. Cho, Jeehye Byun   +3 more
wiley   +1 more source

Ultrasound promoted green synthesis of benzofuran substituted thiazolo[3,2-b][1,2,4]triazoles

Green Processing and Synthesis, 2017
A highly efficient, eco-friendly and one-pot synthesis of benzofuran substituted thiazolo[3,2-b][1,2,4]triazoles was developed involving the reaction of 2-acetyl benzofurans and 5-mercapto-3-(4-chlorophenyl)-1,2,4triazole in the presence of molecular ...
Kumar Surender, Sharma Dinesh Kumar
doaj   +1 more source

Plasmin Regulation through Allosteric, Sulfated, Small Molecules [PDF]

, 2015
Plasmin, a key serine protease, plays a major role in clot lysis and extracellular matrix remodeling. Heparin, a natural polydisperse sulfated glycosaminoglycan, is known to allosterically modulate plasmin activity.
Al-Horani, Rami A., Desai, Umesh R., Karuturi, Rajesh, White, Domonique T.   +3 more
core   +3 more sources

Counterion Effects Enable Divergent Pd‐Catalyzed Carbonylative Cyclization of Amide‐Tethered o‐Alkynylphenols

Advanced Synthesis &Catalysis, Volume 368, Issue 11, 3 June 2026.
The catalytic carbonylation of alkynes is a powerful route to heteroaromatic scaffolds, yet achieving regioselectivity remains challenging. Herein, we report a divergent carbonylative cyclization of 2‐alkynylphenol derivatives that affords either coumarins (6‐endo‐dig) or 2‐coumaranones (5‐exo‐dig) by tuning the palladium‐based catalytic system. Pd(OAc)
Aleksandr Voronov, Filippo Sacchelli, Diego Olivieri, Ana Maria Constantin, Paolo Pio Mazzeo, Raffaella Mancuso, Bartolo Gabriele, Carla Carfagna, Riccardo Tarroni, Luca Capaldo, Valerio Morlacci, Nicola Della Ca’   +11 more
wiley   +1 more source

Biochemical, haematological and histopathological studies of extract of Ageratum conyzoides L. in Sprague Dawley rats [PDF]

, 2010
This study was conducted to evaluate the safety potential of the leaf extract of Ageratum conyzoides Linnaeus in Sprague Dawley (SD) rats using biochemical, haematological and histological indices of toxicity.
Adebayo, H. A., Akindahunsi, A. A., Fan, Jun-Ting, He, Wen-Jun, JI, Chang-Jiu, Kela, Roseline, Tan, Ning-Hua, Xu, Jun-Ju, Zeng, Guang-Zhi, Zhang, Yu-Mei   +9 more
core   +2 more sources

Strategies Toward Accessing Enantioenriched (Hetero)Benzo‐Fused 5‐ and 6‐ Membered Rings via Intermolecular Carbometalation

Angewandte Chemie, Volume 138, Issue 23, 1 June 2026.
The use of transition‐metal catalysts and design of chiral ligands have allowed chemists to access highly functionalized benzofused 5‐ and 6‐ membered rings in high yield and enantioselectivity. A common strategy used relies on an intermolecular carbometalation across alkynes and olefins, usually followed by a subsequent intramolecular carbometalation.
Clara Jans, Armaan Grewal, Xavier Abel‐Snape, Mark Lautens   +3 more
wiley   +1 more source

Deprotonative C(sp3)/C(sp2)–H (Multi)Silylation of (Hetero)Arenes Mediated by NaTMP

Angewandte Chemie, Volume 138, Issue 21, 18 May 2026.
An operationally simple protocol using a strongly basic sodium amide in combination with sterically emcumbered silicon electrophiles enables the deprotonative C–H (multi)silylation of a myriad of (hetero)arenes. Mechanistic investigations highlight the pivotal role of steric and coordination effects in controlling the regioselectivity and efficiency of
David Sánchez‐Roa, Sophia Belrhomari, Ana McGinley, Clevin Anto Liju, Manting Mu, Max García‐Melchor, Eva Hevia   +6 more
wiley   +2 more sources

Synthesis of Fused and Linked Benzofurans from 2-Alkynylphenol Derivatives through Rhodium(I)-catalyzed Domino-type Addition Reactions

CHIMIA, 2018
A rhodium(I)-catalyzed domino-type sequential 5-endo/5-exo cyclization reaction of [(2-acylphenyl) ethynyl]phenols produces indene/benzofuran-fused alcohols.
Takanori Matsuda, Shinya Abe, Hirotaka Ito, Tomoya Tsuboi, Haruki Kirikae, Masahiro Murakami   +5 more
doaj   +1 more source

Hydrogenative Conversion of C5 Biomass Feedstock Furoic Acid to δ‐Valerolactone on Pt‐Loaded Silicoaluminophosphate

ChemistryEurope, Volume 4, Issue 6, June 2026.
Novel Pt catalysts supported on zeolitic silicoaluminophosphate efficiently promoted the hydrogenative conversion of furoic acid to δ‐valerolactone under mild conditions. High activity arose from finely dispersed Pt nanoparticles stabilized by the porous support. Mechanistic studies indicated site‐selective partial hydrogenation followed by Csp²–O bond
Haruro Ishitani, Takashi Uemura, Tomoya Kawase, Shū Kobayashi   +3 more
wiley   +1 more source

Regioselective Synthesis of Benzylsilanols from Kobayashi‐Type Reagents via C(sp3)─H Bond Activating 1,4‐Palladium Migration

Angewandte Chemie, Volume 138, Issue 21, 18 May 2026.
A Pd‐catalyzed regioselective synthesis of benzylsilanols from Kobayashi‐type reagents has been developed through a mechanistically distinct approach involving 1,4‐Pd migration followed by intramolecular transmetalation. The reaction can be combined with various prior transition‐metal‐catalyzed processes and the resulting benzylsilanols have been ...
Ryo Shintani, Keisuke Tachibana
wiley   +2 more sources