Results 91 to 100 of about 36,400 (237)

Green and traditional one-pot synthesis techniques for bioactive quinoline derivatives: A review

open access: yesTetrahedron Green Chem
The review examines one-pot strategies and their mechanistic approaches for synthesizing the quinoline nucleus from 2009 to 2024, with a focus on their therapeutic potential.
Manav C. Parmar, Bonny Y. Patel
doaj   +1 more source

Nickel Foam Electrodes—A Versatile, Powerful, and Readily Available Tool in Electro‐Organic Synthesis

open access: yesThe Chemical Record, EarlyView.
Nickel foam—one material, two faces, and several versatile roles depending on electrolytic conditions. For more than 50 years, nickel foam electrodes have served in electrosynthesis as powerful and readily available electrode materials. Due to their inexpensive nature and easy handling, they have been widely employed.
Rok Narobe   +2 more
wiley   +1 more source

"One Pot" Synthesis of 1,5-Diaza-2,3,6,7-Thetrahydro-4-Methyl-Phenanthrene-4,8-Dione From Corresponding Bis-Beta-Amino Acid [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 1999
The cyclization of b-anilino propionic acids in the presence of polyphosphoric acid (PPA) afforded the 2,3-Dihydroquinoline-4-(1H)-ones in good yields. N,N'-bis(2-carboxyethyl)-4-methyl-1,2-diaminobenzene (7) is cyclized under this condition to produce ...
Abbas Shokravi   +1 more
doaj  

Covalent drug discovery: Progress against key targets, emerging strategies and lessons learnt

open access: yesBritish Journal of Pharmacology, EarlyView.
Abstract Covalent drug discovery is currently experiencing a boom in industrial and academic interest. To date, at least 75 covalent drugs have received regulatory approval, targeting both traditional target classes and more challenging proteins for which other approaches failed. In many cases, unique aspects of covalent targeting are essential for the
Charles P. Brown   +2 more
wiley   +1 more source

Application and Synthesis of a New Hybrid Heterocyclic Derivative with Antioxidant Evaluation

open access: yesChemistry Proceedings
New hydrazinecarboximidamide derivatives were successfully synthesized with excellent yields. These compounds have been proven to be potent inhibitors of acetylcholinesterase and tubulin, and they also exhibit significant antioxidant effects. Furthermore,
Amira Ait Belkacem   +2 more
doaj   +1 more source

SYNTHESIS OF BROMINATED QUINOLINES

open access: yes, 2014
this study, bromination reactions of 1,2,3,4-tetrahydroquinoline by molecular bromine and aromatization reactions of brominated tetrahydroquinolines were reinvestigated. Optimal reaction conditions were established for 6-Bromo-1,2,3,4-tetrahydroquinoline (6-BrTHQ) and 6,8-dibromo-1,2,3,4-tetrahydroquinoline (6,8-diBrTHQ).
ÖKTEN, Salih   +2 more
openaire   +3 more sources

Advances in organic UV filters for sunscreens over the past decade

open access: yesPhotochemistry and Photobiology, EarlyView.
Highlighted organic UV filter frameworks that have been described for sunscreens over the past decade divided into three groups: derivatives of or inspired by approved organic UV filters, natural product‐based compounds, and miscellaneous. Abstract Ultraviolet (UV) radiation is a major environmental factor in photoaging, erythema, and skin cancer ...
Gabriela Zanella Marcon   +4 more
wiley   +1 more source

Simultaneous Determination of the Contents of Quinoline, Pyridine and Crotonaldehyde in Footwear Materials by Gas Chromatography-Mass Spectrometry Method

open access: yesPige Kexue Yu Gongcheng
A gas chromatography-mass spectrometry (GC-MS) method was developed for the simultaneous determination of quinoline, pyridine, and crotonaldehyde in footwear materials.
Yuhong TANG   +4 more
doaj   +1 more source

Synergistic Mechanism Between Ir–Phosphinito Catalyst and HFIP Enables Asymmetric Hydrogenation of Ketones Under Acidic Conditions

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 15, 1 August 2026.
A cooperative mechanism between a phosphinito Ir complex and HFIP provides a low‐energy pathway for hydrogen activation. This allowed the development of a highly efficient catalytic system for the hydrogenation of ketones that operates under acidic conditions, enabling the reduction of substrates containing phenols and carboxylic acids with no added ...
Martí Sidro   +6 more
wiley   +1 more source

Diastereoselective Copper‐Catalyzed Defluorosilylation of Pentafluoroethyl Alkenes to Access Polyfluorinated Allylsilanes

open access: yesChinese Journal of Chemistry, Volume 44, Issue 15, Page 2587-2592, 1 August 2026.
Under copper(I) catalysis, pentafluoroethylated alkenes can undergo smooth defluorosilylation to generate novel polyfluorinated products. The reaction exhibits high levels of diastereoselectivities for obtaining multisubstituted allylsilanes with control of the double bond geometry.
Yuwei Zong, Yihan Tang, Gavin Chit Tsui
wiley   +1 more source

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