Results 211 to 220 of about 51,809 (295)

A Three‐Step Route to Functionalized Pyrrole‐2,5‐Dicarboxylic Acids from Galactaric Acid

ChemSusChem, Volume 19, Issue 8, 28 April 2026.
Galactaric acid (GalA) has been used as substrate for a library of N‐substituted pyrrole‐2,5‐dicarboxylic acids (PDCAs). Existing routes to N‐substituted PDCAs require many steps or lack product isolation. We present a simple, scalable three‐step synthesis from GalA via a 2‐pyrone salt, giving isolated PDCA derivatives in high yield without ...
Giacomo Trapasso, Davide Dalla Torre, Marco Artuso, Fabio Aricò   +3 more
wiley   +1 more source

Alkoxysulfonium Salts Unlock Access to New Aryl Sulfonium Salts for Cross‐Coupling

Angewandte Chemie, Volume 138, Issue 17, 20 April 2026.
Hard‐to‐access (hetero)aryl sulfonium salts are prepared using stable methoxysulfonium salts in combination with the magnesiation of (hetero)aryl bromides. The approach allows access to aryl sulfonium salts bearing electron‐deficient (hetero)aryl rings, or electron‐rich aryl motifs in which the sulfonium motif resides at an alternative position on the ...
Rachel E. Brown, Navpreet Kaur, Anne‐Chloe M. A. Nassoy, Ciro Romano, David J. Procter   +4 more
wiley   +2 more sources

A promising dual catalytic "Isothiourea + X" platform: from classic ionic to radical transformations. [PDF]

RSC Adv
Zhang B, Li Y, Ji Z, Wang J.
europepmc   +1 more source

Comparative Evaluation of Additives in Softwood Fractionation: Impacts on Lignin Recovery and Pulp Quality

ChemSusChem, Volume 19, Issue 8, 28 April 2026.
Chemical lignin stabilization during acid hydrotropic fractionation is shown to distinctly influence delignification, lignin quality, and pulp performance. Phenol enhances lignin removal, while thiol‐based modifier yields light‐colored lignin, high recovery, and strong pulp.
Juho Antti Sirviö, Ekaterina Sheridan, Donya Arjmandi, Jasmiina Haverinen, Dmitry Tarasov, Chunlin Xu, Ari Ämmälä, Jarkko Räty   +7 more
wiley   +1 more source

NiH‐Catalyzed Enantioconvergent α‐Alkenylation of Carbonyl Compounds via Markovnikov Alkyne Hydronickellation

Angewandte Chemie, Volume 138, Issue 17, 20 April 2026.
A NiH‐catalyzed α‐alkenylation via Markovnikov hydronickellation of alkynes enables convenient access to α‐chrial β‐methylene carbonyl frameworks that are prevalent in biorelevant molecules. High regio‐ and enantioselectivities have been achieved with excellent functional group tolerance and applicability toward complex structures. The β‐methylene unit
Hyeontaek Nam, Seji Jang, Dongwook Kim, Sangwon Seo   +3 more
wiley   +2 more sources

Electrochemical control enables high-concentration, one-pot macrolactonization. [PDF]

Chem Sci
Mao S, Wei D, Xu K, Zeng C.
europepmc   +1 more source

Progress towards metal-free radical alkylations of quinones under mild conditions [PDF]

, 2019
Baxter, Ryan D, Galloway, Jordan D
core   +1 more source

Exploring the Potential of Pyridine Carboxylic Acid Isomers to Discover New Enzyme Inhibitors. [PDF]

Drug Des Devel Ther
Yaqoob S, Khan FA, Tanveer N, Ali S, Hameed A, El-Seedi H, Jiang ZH, Wang Y.   +7 more
europepmc   +1 more source

5‑Amino-5-deoxyshikimic Acid as a Versatile γ‑Amino Acid for Peptidomimetic Synthesis. [PDF]

ACS Omega
Suć Sajko J, Pahović F, Jerić I.
europepmc   +1 more source

Sodium thiosulfate-catalysed synthesis of thioethers from aldehydes or carboxylic acids. [PDF]

R Soc Open Sci
Salehi M, Nowrouzi N, Abbasi M.
europepmc   +1 more source