Results 141 to 150 of about 19,339 (247)

Photogenerated Oxetanes as a Gateway to Uphill Cyclopropanation

Angewandte Chemie International Edition, Volume 65, Issue 35, 24 August 2026.
An atom‐economical route to densely functionalized cyclopropanes from furans and photochemically activated aldehydes is enabled by a unique oxetane‐to‐cyclopropane rearrangement. These cyclopropanes can be used to access complex bioactive scaffolds and serve as a platform for asymmetric cyclopropane synthesis.
Tim Köglmeier, Thomas J. Tiefel, Oliver Reiser   +2 more
wiley   +1 more source

Blue Light-Mediated Multicomponent Synthesis of 5-Amino-4-chalcogenyl-1H-pyrazoles. [PDF]

J Org Chem
Cordeiro P, Thomaz JPSSC, Theodorio MG, Peglow TJ, Barcellos T, Braga AL, Nascimento V.   +6 more
europepmc   +1 more source

DYNO-MILL-Assisted Mechanochemistry: Design of Experiments Optimization for Sustainable Synthesis of Pyrrolo[3,4-c]pyrazoles. [PDF]

ChemSusChem
Pandey R, Mariaux R, Bera S, Verma K, Gremaud L, Sen S.   +5 more
europepmc   +1 more source

Synthesis and characterization of a novel nanomagnetic solid carboxylic acid for sustainable synthesis of pyrano[2,3-c]pyrazoles in water. [PDF]

Sci Rep
Fayzullaev N, Rashid TA, Rab SO, AlMohamadi H, Jadeja Y, Gupta A, Sharma A, Prasad GVS, Abbas ZK, Kadhum WR.   +9 more
europepmc   +1 more source

The Stabilization of High‐Nitrogen Systems: 10 Catenated Nitrogen Chain

Chemistry – A European Journal, Volume 32, Issue 31, 18 August 2026.
Improving the understanding of high‐nitrogen materials. ABSTRACT High‐nitrogen materials have attracted intense interest in recent decades due to their unique chemical, physical, and biological properties. Stabilizing high‐nitrogen materials is often challenging as they become more unstable with increasing nitrogen catenation and nitrogen mass ...
Nicholas F. Scherschel, Thomas R. Talbot IV, Matthias Zeller, Davin G. Piercey   +3 more
wiley   +1 more source

Recent advances in copper-catalyzed direct hydroamination of alkenes with (hetero)aromatic amines. [PDF]

Beilstein J Org Chem
Lee H, Lee Y.
europepmc   +1 more source

Dynamic Control of Nucleic Acids Self‐Assembly and Expression Using Photoswitches

Chemistry – A European Journal, Volume 32, Issue 31, 18 August 2026.
We review here the recent progress made in the design of molecular photoswitches, and highlight their implementation for the dynamic control over nucleic acids self‐assembly and expression. ABSTRACT Synthetic nucleic acids have become readily available and now constitute versatile building blocks in materials science—where they can be used to engineer ...
Noemí Nogal, Hugo Laigle, Maxime Mansy, Sébastien Ulrich, Mathieu Surin   +4 more
wiley   +1 more source

Copper-Mediated Late-Stage Radical Trifluoromethylation of Pyrazole-Type Scaffolds. [PDF]

ACS Omega
Eisen LS, Griwatz JH, Ruf S, Méndez M, Gomez-Bengoa E.   +4 more
europepmc   +1 more source

Synthetic Strategies for Activity‐Based Probes to Decode Ubiquitin‐Like Modifiers

Chemistry – A European Journal, Volume 32, Issue 30, 13 August 2026.
ABSTRACT Ubiquitin‐like proteins (Ubls) such as SUMO, NEDD8, ISG15, URM1, UFM1, FAT10, ATG8/ATG12, and FUBI are essential regulators of cellular homeostasis, controlling processes from protein stability and trafficking to immune signaling and autophagy.
Saibal Chanda, Alan Pham, SreeNidhi Karnati, Natalia Soto Rodriguez, Alyssa Toner, Wenshe Ray Liu   +5 more
wiley   +1 more source

Recent Advances in Pyrazole-Based Cholinesterase Inhibitors: Medicinal Chemistry Perspectives from 2020 to 2025. [PDF]

Pharmaceuticals (Basel)
Yeysin L, Akın D, Çalışkan S, Hasanoğlu Özkan E, Hashem H, Akocak S, Bräse S, Çete S.   +7 more
europepmc   +1 more source