Results 121 to 130 of about 81,237 (352)

A Radical Cascade with Double Intramolecular Hydrogen Atom Transfer for the Generation of Bisfunctionalized Cyclopentanes from Linear Alkynes

Angewandte Chemie, Volume 138, Issue 5, 28 January 2026.
A radical cascade process involving the activation of two aliphatic C–H bonds in a series of five elementary steps converts readily available terminal alkynes into functionalized cyclopentylmethyl arylsulfones. The methodology delivers flexible synthetic intermediates and was applied to the preparation of diquinanes and triquinanes possessing a rare ...
Lise Benoist, Éléonore Barbier, Mariam Sangare, Philippe Renaud, Fabrice Dénès   +4 more
wiley   +2 more sources

Ethyl 6′-cyano-7′-(p-tolyl)-1′,6′,7′,7a′-tetrahydro-3′H-spiro[indeno[1,2-b]quinoxaline-11,5′-pyrrolo[1,2-c]thiazole]-6′-carboxylate

IUCrData, 2019
The title compound, C31H26N4O2S, crystallizes in a triclinic centrosymmetric lattice with two molecules in the unit cell. The five-membered thiazole and pyrrolidine rings adopt twisted and envelope conformations, respectively.
C. Muthuselvi, M. Muthu, S. Athimoolam, B. Ravikumar, S. Pandiarajan, N. Srinivasan, R. V. Krishnakumar   +6 more
doaj   +1 more source

Structural Modeling and Dynamics of the Full‐Length Homer1 Multimer

Proteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT Homer proteins are modular scaffold molecules that constitute an integral part of the protein network within the postsynaptic density. Full‐length Homer1 forms a large homotetramer via a long coiled coil region, and can interact with proline‐rich target sequences with its globular EVH1 domain.
Zsófia E. Kálmán, András Czajlik, Brigitta Maruzs, Fanni Farkas, István Pap, Csilla Homonnay, Tomas Klumpler, Gyula Batta, Zoltán Gáspári, Bálint Péterfia   +9 more
wiley   +1 more source

Synthesis of pyrrolo[1,2-a]quinolines by formal 1,3-dipolar cycloaddition reactions of quinolinium salts

Beilstein Journal of Organic Chemistry, 2019
Quinolinium salts, Q+-CH2-CO2Me Br− and Q+-CH2-CONMe2 Br− (where Q = quinoline), were prepared from quinolines. Deprotonation of these salts with triethylamine promoted the reaction of the resulting quinolinium ylides (formally azomethine ylides) with ...
Anthony Choi, Rebecca M. Morley, Iain Coldham   +2 more
doaj   +1 more source

Vibrational signatures of gaseous Meisenheimer complexes bonded at carbon and nitrogen [PDF]

, 2017
Anionic adducts of 1,3,5-trinitrobenzene (TNB) with deprotonated pyrrolidine (Pyr), imidazole (Im), acetone (Ac) and acetylacetone (Acac) have been delivered into the gas phase by electrospray ionization.The so-formed ions, TNB-Nu−(Nu = Pyr, Im, Ac, Acac)
Chiavarino, Barbara, Crestoni, Maria Elisa, Fornarini, Simonetta   +2 more
core   +1 more source

The continuing significance of chiral agrochemicals

Pest Management Science, Volume 81, Issue 4, Page 1697-1716, April 2025.
In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Peter Jeschke
wiley   +1 more source

Efficient gold(I)/silver(I)-cocatalyzed cascade intermolecular N-Michael addition/intramolecular hydroalkylation of unactivated alkenes with α-ketones

Beilstein Journal of Organic Chemistry, 2011
The gold(I)/silver(I)-cocatalyzed cascade intermolecular N-Michael addition/intramolecular hydroalkylation reaction offers a simple and efficient method for the synthesis of pyrrolidine derivatives in moderate to excellent product yields and with ...
Ya-Ping Xiao, Xin-Yuan Liu, Chi-Ming Che
doaj   +1 more source

Gold(III)-pyrrolidinedithiocarbamato Derivatives as Antineoplastic Agents [PDF]

, 2015
Transition metals offer many possibilities in developing potent chemotherapeutic agents. They are endowed with a variety of oxidation states, allowing for the selection of their coordination numbers and geometries via the choice of proper ligands ...
Brustolin, Leonardo, Chiara, Federica, Ciscato, Francesco, Fregona, Dolores, Gambalunga, Alberto, Nardon, Chiara, Rasola, Andrea, Trevisan, Andrea   +7 more
core   +2 more sources

High‐Voltage Cathode Materials for Sodium‐Ion Batteries: Advances and Challenges

Small, EarlyView.
This review explores the role of high‐voltage cathode materials in enhancing the performance of SIBs. It focuses on strategies to improve energy density, rate capacity, and stability, addressing challenges like phase transitions, metal migration, and electrolyte degradation.
Congqi Ren, Yulian Dong, Yong Lei
wiley   +1 more source

Photocatalyzed Ring Expansion of α‐Ketosulfonylaziridines: Ready Access to δ‐Sultams

Angewandte Chemie, Volume 138, Issue 4, 22 January 2026.
A novel radical–polar crossover (RPC) photoredox‐catalyzed reaction for the synthesis of δ‐sultams from N‐sulfonyl α‐ketoaziridines through a controlled ring opening–expansion process is presented. This method allows the easy access to sultams with an unprecedented substitution pattern in up to 85% yield and 2:1 d.r., and highlights the potential of ...
Marco M. Mastandrea, Stefania Perulli, Vittoria Martini, Ludovica Primitivo, Lei‐Jie Zhou, Christian Mück‐Lichtenfeld, Miquel A. Pericàs, Olga García Mancheño   +7 more
wiley   +2 more sources