Results 61 to 70 of about 4,804 (192)

Single‐Step Generation of β‐Ketosulfides from Epoxides and Thiols Catalyzed by a Ru(II)–Pincer Complex

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 30, 12 August 2026.
β‐Ketosulfides can be generated in a single step through direct coupling of epoxides and thiols, catalyzed by a Ru(II)–pincer complex. This process requires no substrate preactivation with leaving groups or the use of additives, and liberates H2 gas as a byproduct.
Yarden Lavi   +5 more
wiley   +1 more source

Accessing Heterocycle‐Containing Borazine Frameworks via C−H Functionalization Reactions of Heterocycles

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 29, 7 August 2026.
A Pd/Cu cooperative catalytic system enables the direct C–H functionalization of a diverse range of five‐membered and benzo‐fused heterocycles with iodinated hexaarylborazines, providing efficient access to previously inaccessible heterocycle‐functionalized borazines.
Fan Huang   +5 more
wiley   +1 more source

Crystal structure of ethyl 1′,1′′-dimethyl-2′′,3-dioxo-3H-dispiro[benzo[b]thiophene-2,3′-pyrrolidine-2′,3′′-indoline]-4′-carboxylate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C23H22N2O4S, the pyrrolidine ring has an envelope conformation with the spiro C atom, shared with the indoline ring system, as the flap. The mean planes of the benzothiophene and indoline ring systems are inclined to the mean plane
M. P. Savithri   +4 more
doaj   +1 more source

Sonochemical Degradation of Benzothiophene (BT) in Deionized Water, Natural Water and Sea Water

open access: yesMolecules, 2019
This paper deals with the sonochemical water treatment of polycyclic aromatic sulfur hydrocarbons (PASHs), one of the most common impurities found in waste water coming from petroleum industry.
Khadijah M. Al-Zaydi   +4 more
doaj   +1 more source

Pd‐Catalyzed Direct Access to 2‐Substituted (Aza)benzo[b]furans via Cascade Reactions Under “On‐Water” Conditions

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 15, 1 August 2026.
An “on‐water” scalable Pd‐catalyzed heteroannulation delivers benzofurans and furopyridines at ultralow catalyst loadings (down to 0.005 mol%), providing products essentially free of palladium residues. In addition to a broad substrate scope (aryl, alkenyl, and alkyl alkynes with o‐iodophenols or 2‐iodo‐3‐hydroxypyridines), this protocol enables a new ...
Iratxe Astarloa   +3 more
wiley   +1 more source

Synthesis of 3‐Chalcogenyl‐benzo[b]Chalcogenophenes via Chalcogenation/Cyclization of Alkynes Promoted by Selectfluor

open access: yesAsian Journal of Organic Chemistry, Volume 15, Issue 8, August 2026.
A simple, mild, and safe electrophilic chalcogenocyclization reaction of a diverse array of alkynyl chalcogenoanisoles is depicted. The reactions are mediated by Selectfluor, as a stable, easy‐to‐handle, nontoxic, and safe oxidizing agent. Several 3‐chalcogenyl‐benzo[b]chalcogenophenes were obtained in moderate to excellent yields.
Jean C. Kazmierczak   +5 more
wiley   +1 more source

Structural Modifications of Nonsteroidal Anti‐Inflammatory Drugs (NSAIDs): New Horizons in Antimicrobial Drug Discovery

open access: yesArchiv der Pharmazie, Volume 359, Issue 8, August 2026.
This review provides a comprehensive analysis of the molecular modifications applied to NSAIDs to develop novel antimicrobial agents. By focusing on structural changes and their impact on biological activity, the study highlights innovative strategies to combat the global challenge of antimicrobial resistance.
Ebru Koçak Aslan   +2 more
wiley   +1 more source

Diastereoselective Copper‐Catalyzed Defluorosilylation of Pentafluoroethyl Alkenes to Access Polyfluorinated Allylsilanes

open access: yesChinese Journal of Chemistry, Volume 44, Issue 15, Page 2587-2592, 1 August 2026.
Under copper(I) catalysis, pentafluoroethylated alkenes can undergo smooth defluorosilylation to generate novel polyfluorinated products. The reaction exhibits high levels of diastereoselectivities for obtaining multisubstituted allylsilanes with control of the double bond geometry.
Yuwei Zong, Yihan Tang, Gavin Chit Tsui
wiley   +1 more source

Facile Oxidative Desulfurisation of Benzothiophene Using Polyoxometalate H4[α-SiW12O40]/Zr Catalyst

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2015
A highly active catalyst H4[α-SiW12O40]/Zr based polyoxometalete Keggin type was prepared by wet impregnation method and was characterized by FTIR spectroscopy, X-ray diffractometer, surface textural property by SEM, and analysis of porosity by BET ...
Aldes Lesbani Aldes Lesbani   +5 more
doaj   +1 more source

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