Results 291 to 300 of about 79,213 (337)

Nanoscale wetting controls reactive Pd ensembles in synthesis of dilute PdAu alloy catalysts. [PDF]

Nat Commun
Lim KRG, Owen CJ, Kaiser SK, Routh PK, Mendoza M, Park KK, Kim TS, Garg S, Gardener JA, Russotto L, O'Connor CR, Bijl M, Aizenberg M, Reece C, Lee JD, Frenkel AI, Kozinsky B, Aizenberg J.   +17 more
europepmc   +1 more source

Reactivity of Imidazole‐ and Pyridine‐Carboxaldehydes for Gem‐Diol and Hemiacetal Generation: Theoretical and Experimental Insights

ChemistryOpen, EarlyView.
The generation of the gem‐diol and hemiacetal forms using pyridine‐ and imidazole‐carboxaldehyde isomers in different chemical environments was studied by NMR spectra and combined with theoretical calculations. Unlike aprotic solvents, protic ones, as water and methanol, favored the generation of the gem‐diol and hemiacetal structures.
Ayelén F. Crespi, Emiliano Barrionuevo, Gabriel Jasinski, Albertina G. Moglioni, Daniel Vega, Juan M. Lázaro‐Martínez   +5 more
wiley   +1 more source

Computational study on catalyst-free BCl₃-promoted chloroboration of carbonyl compounds. [PDF]

RSC Adv
Derese AT, Menkir MG, Wolie MK, Yemam DA.   +3 more
europepmc   +1 more source

Design, Synthesis, Biological Evaluation, and In Silico Study of Tetrahydropyridines as Prospective Monoamine Oxidase Inhibitors

ChemistryOpen, EarlyView.
This work investigates the selective inhibition of MAO enzymes by varying the substitution of electron‐withdrawing and donating groups on the phenyl rings of tetrahydropyridines (4 a–4 o). Compounds 4 l and 4 n exhibit promising IC50 values of 0.40±0.05 and 1.01±0.03 μM against MAO‐A and MAO‐B, respectively.
Obaid ur Rehman Khan, Bilal Ahmad Khan, Syeda Shamila Hamdani, Saquib Jalil, Peter A. Sidhom, Khalid Elfaki Ibrahim, Tarad Abalkhail, Jamshed Iqbal, Hatem Tallima, Tamer Shoeib, Mahmoud A. A. Ibrahim   +10 more
wiley   +1 more source

Exploring Unspecific Peroxygenase Selectivity with Diverse Hydrocarbon Substrates

ChemistryOpen, EarlyView.
Unspecific peroxygenases (UPOs) are versatile enzymes that can be used for different reactions. However, selectivity of UPOs needs to be evaluated for the desired application. Thus, the selectivity of a panel of UPOs was evaluated in this work, and it revealed diverse reactivity profiles depending on the enzyme and substrate.
Essi Rytkönen, Nina Hakulinen, Janne Jänis, Juha Rouvinen   +3 more
wiley   +1 more source

Enhanced Catalytic Performance of Sn Single-Atom Doped CuO with Oxygen Vacancies for Efficient Epoxidation of α-Olefins. [PDF]

Molecules
Zhang M, Qin G, Li P, Zhang X, Chang H, Zhou Z, Zhao W, Huang X, Tang K, Ning Y, Song C, He P.   +11 more
europepmc   +1 more source

Multifunctional Heterocyclic Scaffolds for Hybrid Lewis Acid/Lewis Base Catalysis of Carbon–Carbon Bond Formation [PDF]

, 2016
Benoit, Adam R., Dockendorff, Chris, Huff, Raechel, Lindeman, Sergey, Meyle, Elisia, Porter, Jacob D., Wiedenhoeft, Dennis, Wu, Yibiao, Yeung, Teresa H.W.   +8 more
core   +1 more source

SiO2@Benzothiazole‐Cl@Fc as an Efficient Heterogeneous Catalyst for the Synthesis of 1,3,5‐Trisubstituted Pyrazoles by A3 Coupling

ChemistryOpen, EarlyView.
This research introduces the preparation and analysis of a newly heterogeneous catalyst developed silica nanospheres supporting a ferrocene‐containing ionic liquid (SiO2@Benzothiazole‐Cl@Fc) for the A3 coupling reaction. The catalyst facilitates the efficient synthesis of 1,3,5‐trisubstituted pyrazoles from aromatic hydrazides, aldehydes, and aromatic ...
Fadhil Faez Sead, Vicky Jain, Roopashree R, Aditya Kashyap, Suman Saini, Girish Chandra Sharma, Pushpa Negi Bhakuni, Mosstafa Kazemi, Ramin Javahershenas   +8 more
wiley   +1 more source

Chalcone Synthesis by Green Claisen-Schmidt Reaction in Cationic and Nonionic Micellar Media. [PDF]

J Org Chem
Dotta D, Gastaldi M, Fin A, Barbero N, Barolo C, Cardano F, Rossi F, Brunelli F, Viscardi G, Tron GC, Quagliotto P.   +10 more
europepmc   +1 more source

Aqueous/Nonaqueous DBU Mixtures: Versatile Switching Media for Chemoselective Aldol, Baylis‐Hillman, and Aldol Condensation Reactions

ChemistryOpen, EarlyView.
A switchable DBU‐catalyzed procedure is designed for the reaction of isophorone with aldehydes to give either aldol, Baylis‐Hillman, or aldol condensation products, depending on the use of water and/or heat. The observed divergency stems from the ability to tune the dual nucleophilicity/basicity characters of the medium. The conditions are amenable for
Elaheh Akbarzadeh, M. Saeed Abaee, Yazdanbakhsh L. Nosood, Mohammad M. Mojtahedi, Klaus Harms, Zahra Shabani   +5 more
wiley   +1 more source