Results 91 to 100 of about 45,362 (276)

Copper-promoted C5-selective bromination of 8-aminoquinoline amides with alkyl bromides

Beilstein Journal of Organic Chemistry
An efficient and practical method for the synthesis of C5-brominated 8-aminoquinoline amides via a copper-promoted selective bromination of 8-aminoquinoline amides with alkyl bromides was developed.
Changdong Shao, Chen Ma, Li Li, Jingyi Liu, Yanan Shen, Chen Chen, Qionglin Yang, Tianyi Xu, Zhengsong Hu, Yuhe Kan, Tingting Zhang   +10 more
doaj   +1 more source

Molecular design and structural optimization of nanocellulose-based films fabricated via regioselective functionalization for flexible electronics

, 2022
Otávio Augusto Titton Dias, Samir K. Konar, Viktoriya Pakharenko, Antimo Graziano, Alcides Lopes Leão, Jimi Tjong, Shaffiq A. Jaffer, Teng Cui, Tobin Filleter, Mohini Sain   +9 more
openalex   +2 more sources

Regioselectivity in the multicomponent reaction of 5-aminopyrazoles, cyclic 1,3-diketones and dimethylformamide dimethylacetal under controlled microwave heating

Beilstein Journal of Organic Chemistry, 2012
The multicomponent reaction of 5-aminopyrazole derivatives with cyclic 1,3-dicarbonyl compounds and dimethylformamide dimethylacetal (DMFDMA) in DMF at 150 °C under controlled microwave heating afforded regioselectively 8,9-dihydropyrazolo[1,5-a ...
Kamal Usef Sadek, Ramadan Ahmed Mekheimer, Tahany Mahmoud Mohamed, Moustafa Sherief Moustafa, Mohamed Hilmy Elnagdi   +4 more
doaj   +1 more source

Intermolecular Enantioselective Nickel‐Catalyzed Arylation of Un‐Activated C(sp3)─H Bond

Angewandte Chemie International Edition, EarlyView.
Ni: a new solution for asymmetric C(sp3)─H activation. The stereoselective synthesis of all‐carbon quaternary stereogenic centres is achieved via enantioselective C(sp3)─H arylation using a Ni‐BINOL‐derived catalyst. Rational catalytic cycle design uncovers a new reaction pathway that can efficiently induce chiral information during the stereoselective
Erwan Brunard, Fengjie Huang, Àlex Díaz‐Jiménez, Sofiya Kostiukovska, Joanna Wencel‐Delord   +4 more
wiley   +1 more source

Synthesis of α-D-GalpN3-(1-3)-D-GalpN3: α- and 3-O-selectivity using 3,4-diol acceptors

Beilstein Journal of Organic Chemistry, 2018
The motif α-D-GalpNAc-(1-3)-D-GalpNAc is very common in Nature and hence its synthesis highly relevant. The synthesis of its azido precursor has been studied and optimized in terms of steps, yields and selectivity. It has been found that glycosylation of
Emil Glibstrup, Christian Marcus Pedersen   +1 more
doaj   +1 more source

Green and Regioselective Approach for the Synthesis of 3-Substituted Indole Based 1,2-Dihydropyridine and Azaxanthone Derivatives as a Potential Lead for SARS-CoV-2 and Delta Plus Mutant Virus: DFT and Docking Studies [PDF]

, 2022
Jayabal Kamalraja, Dhanasekar Elumalai, Saraswathi Leelakrishnan, Suman Bhattacharya, Venkatesan Rengarajan, Tharanikkarasu Kannan, Shih‐Ching Chuang   +6 more
openalex   +1 more source

Catalyst‐Free Regioselective C3−H Benzoxylation of 1H‐Indoles with Benzoyl Peroxide [PDF]

, 2023
Navyasree Pilli, Sudheer Kumar Karu, Malapaka Chandrasekharam   +2 more
openalex   +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

Regioselective Oxidation of Phenols to o-Quinones with o-Iodoxybenzoic Acid (IBX)

, 2002
Derek Magdziak, Andy A. Rodriguez, Ryan W. Van De Water, Thomas R. R. Pettus   +3 more
openalex   +1 more source

Studying the Outcomes and Mechanisms of Carbocationic Rearrangements Using Algorithm‐Augmented Experimentation

ChemistryEurope, EarlyView.
HopCat, a hybrid algorithm combining rule‐based transformations with quantum‐informed kinetics, can be applied to acid‐catalyzed terpenoid rearrangements. In synergy with human chemists and nuclear magnetic resonance analysis, it facilitates product assignment, candidate selection, and reconstruction of complex mechanistic pathways.
Louis P. J.‐L. Gadina, Sebastian Baś, Ahmad Makkawi, Yasemin Bilgi‐Gadina, Tomasz Klucznik, Wiktor Beker, Bartosz A. Grzybowski   +6 more
wiley   +1 more source