Results 121 to 130 of about 37,566 (244)

Accelerating green heterocyclic synthesis: Convergence of AI, automation, and sustainable chemistry

Bulletin of the Korean Chemical Society, EarlyView.
Green heterocyclic synthesis and data‐driven tools such as AI, high‐throughput experimentation, continuous flow, and self‐driving laboratories have developed largely in parallel. This review connects them and asks how green metrics such as E‐factor and PMI might serve as explicit optimization targets rather than post‐hoc measures, toward sustainable ...
Noor Aisyah Ahmad Shah, Amirreza Mottafegh, Su‐Hyun Yoo, Jongwoon Kim, Minseon Byeon, Juhwan Noh, Yea‐Lee Lee, Jin Suk Myung, Gwang‐Noh Ahn   +8 more
wiley   +1 more source

Regioselectivity-Switchable Hydroarylation of Styrenes

, 2016
Cobalt−phosphine and cobalt−carbene catalysts have been developed for the hydroarylation of styrenes via chelation-assisted C−H bond activation, to afford branched and linear addition products, respectively, in a highly regioselective fashion.
Ke Gao (1521607), Naohiko Yoshikai (1479319)   +1 more
core   +1 more source

Elucidating the Interplay Between Structure and Electrochemical Behavior in Lignin‐Based Polymer Electrolytes for Potassium Batteries

Battery Energy, Volume 4, Issue 2, March 2025.
Three biobased membranes are synthesized by crosslinking oxidized Kraft lignin with poly(ethylene glycol) diglycidyl ether of increasing molecular weights. After incorporation of solvated potassium salts, potassium batteries including these biobased gel polymer electrolytes are able to deliver a maximum specific capacity at 0.05 A g−1 as high as 130 ...
Giuseppe Pascuzzi, Sabrina Trano, Carlotta Francia, Stefano Turri, Federico Bella, Gianmarco Griffini   +5 more
wiley   +1 more source

Silver‐Mediated Deuterium Labelling of Quinones and Related Compounds by Hydrogen Isotope Exchange With D2O

Chemistry – A European Journal, EarlyView.
A new silver‐catalyzed H/D exchange reaction was developed for the labelling of quinones and related compounds. Both homogeneous and heterogeneous catalytic processes were implemented using heavy water as a simple deuterium source. The corresponding deuterated compounds were obtained with high isotopic enrichment through a practical method that opens ...
Joyce C. de Oliveira, Mateus P. Nunes, Frédéric Miserque, Valérie Geertsen, Guilherme A. M. Jardim, Eric Doris, Eufrânio N. da Silva Júnior, Edmond Gravel   +7 more
wiley   +1 more source

Electrochemical Synthesis of Ortho- and Para-Hydroxybenzoic Acids Using CO₂: Experimental and Simulation-Based Optimization

Engineering Proceedings
The electrochemical conversion of CO2 into value-added aromatic carboxylic acids represents an emerging route for carbon utilization. This work investigates the regioselective electrochemical synthesis of ortho- and para-hydroxybenzoic acids (o-HBA and p-
Bekzod Eshkulov, Ruzimurod Jurayev
doaj   +1 more source

Overcoming regioselectivity and accessibility challenges in aryne methodology [PDF]

University of Minnesota Ph.D. dissertation. May 2024. Major: Chemistry. Advisor: Courtney Roberts. 1 computer file (PDF); xxiv, 327 pages.Since its inception, aryne methodology has been an invaluable tool to synthetic chemists.
Plasek, Erin
core  

Regioselectivity on the Palladium-Catalyzed Intramolecular Cyclization of Indole Derivatives

, 2003
Indole 2-carboxamide derivatives 4 underwent palladium-catalyzed intramolecular cyclization reactions to afford β-carbolinones or pyrazino[1,2-a]indoles according to different reaction pathways. The complete regioselectivity of the reactions was obtained
G. Abbiati, E.M. Beccalli, C. Zoni, G. Broggini   +3 more
core   +1 more source

Reversible Cystine Disulfide Scaffolding Enables Carbonyl Sulfide‐Mediated Intramolecular Peptide Bond Formation via Cyclocystine: Implications for Prebiotic Chemistry

Chemistry – A European Journal, EarlyView.
Cystine is unique among amino acids, in that the disulfide bond can allow intramolecular peptide bond formation. This cyclization offers potential advantages for intramolecular coupling selectivity in prebiotic peptide formation. ABSTRACT Treatment of cystine (the disulfide‐linked dimer of cysteine) with carbonyl sulfide (COS) results in the formation ...
Avinash Vicholous Dass, Arthur Srayeddin, Anthony Rullo, Jonathan Stone, Maikel Rheinstadter, Paul Harrison   +5 more
wiley   +1 more source

Ruthenium-Catalyzed Hydrosilylation of 1-Alkynes with Novel Regioselectivity

, 2016
A ruthenium catalyst precursor bearing a bulky and electron-donating pentamethylcyclopentadienyl (Cp*) ligand, typically Cp*RuH3(PPh3), mediates hydrosilylation of several 1-alkynes with novel regioselectivity to give preferentially 2-silyl-1 ...
Yukio Kawanami (3065625), Yoshiya Sonoda (3065628), Takashi Mori (214524), Keiji Yamamoto (1558759)   +3 more
core   +1 more source

Mechanism of Isonitrilase, a Nonheme Iron Decarboxylase Involved in the Biosynthesis of the Isonitrile Group in Peptides: A Computational Study

Chemistry – A European Journal, EarlyView.
A combination of molecular dynamics and quantum mechanics calculations shows that substrate is tightly bound inside the enzyme structure that enables two successive catalytic cycles with dioxygen and α‐ketoglutarate with an initial desaturation followed by hydrogen abstraction and decarboxylation steps to form an isonitrile substituent.
Chengxu Zhu, Sam P. de Visser
wiley   +1 more source