Results 51 to 60 of about 30,052 (209)

Mild Generation of Highly Nucleophilic N‐Heterocyclic Carbene Boryl Anion From Neutral sp2–sp3 Diboron Reagents and Its Applications in Nucleophilic Borylation

Angewandte Chemie, Volume 138, Issue 11, 9 March 2026.
A less hindered and highly nucleophilic N‐heterocyclic carbene (NHC) boryl anion is generated at room temperature by reacting sp2–sp3 diboron reagent (NHC)BH2Bpin with KOtBu. This highly reactive anion demonstrates broad reactivity with various electrophiles, including those traditionally considered inert, enabling their efficient borylation.
Weixuan Sun, Peiqi Zhang, Hairong Lyu
wiley   +2 more sources

Crystal structure of 5-chloro-2-(3-fluorophenyl)-3-methylsulfinyl-1-benzofuran

Acta Crystallographica Section E, 2014
In the title compound, C15H10ClFO2S, the dihedral angle between the plane of the benzofuran ring system [r.m.s. deviation = 0.013 (1) Å] and that of the 3-fluorophenyl ring [r.m.s. deviation = 0.005 (1) Å] is 31.36 (5)°.
Hong Dae Choi, Uk Lee
doaj   +1 more source

Research on synthesis of microwave‐assisted heterocyclic compounds with eco‐friendly solvents and transition metals via C–H activation

Bulletin of the Korean Chemical Society, EarlyView.
This review summarizes microwave‐assisted transition‐metal catalysis for constructing N‐ and O‐heterocycles, highlighting rapid C–H and pre‐activated C–X activation, improved selectivity, and green synthetic efficiency. Abstract Microwave‐assisted organic synthesis provides a rapid and sustainable platform for synthesizing various heterocycles ...
Woo‐Jin Park, Ye Ri Han, Hyejeong Lee
wiley   +1 more source

Synthesis, Electronic Properties, and X-ray Structural Characterization of Tetrarylbenzo[1,2-\u3cem\u3eb\u3c/em\u3e:4,5-\u3cem\u3eb\u3c/em\u3e′]difuran Cation Radicals [PDF]

, 2008
Electroactive tetraarylbenzo[1,2-b:4,5-b′]difuran (BDF) and model diarylbenzofuran derivatives are synthesized and their structures are established by X-ray crystallography.
Lindeman, Sergey V., Rathore, Rajendra, Shukla, Ruchi, Wadumethrige, Shriya   +3 more
core   +1 more source

Spectral implementation of some quantum algorithms by one- and two-dimensional nuclear magnetic resonance

, 2004
Quantum information processing has been effectively demonstrated on a small number of qubits by nuclear magnetic resonance. An important subroutine in any computing is the readout of the output.
Das, Ranabir, Kumar, Anil
core   +1 more source

Combined in vitro and in silico approaches to the assessment of stimulant properties of novel psychoactive substances – The case of the benzofuran 5-MAPB [PDF]

, 2016
Novel psychoactive substances (NPS) are increasingly prevalent world-wide although their pharmacological characteristics are largely unknown; those with stimulant properties, due to interactions with the dopamine transporter (DAT), have addictive ...
Beuming, Beuming, Bisgaard, Brooks, Butcher, Coleman, Colin Davidson, Davidson, Dawson, Di Chiara, Di Chiara, George Khelashvili, Hamilton, Hansen, Harel Weinstein, Harvey, Hume, Humphrey, Iversen, Jolanta Opacka-Juffry, Jones, Khelashvili, Khelashvili, Khelashvili, Klauda, Kniazeff, Kuhar, Lee, Lupyan, Michelle A. Sahai, Monte, Neelakshi Dutta, np_SAD report, Opacka-Juffry, Paxinos, Penmatsa, Phillips, Rickli, Robinson, Shimshoni, Singer, Strazielle, The Misuse of Drugs Act 1971 (Ketamine etc.) (Amendment) Order 2014, Venton, Vincenzo Barrese, Wang, Welter, Welter, Welter-Luedeke, Yorgason   +49 more
core   +2 more sources

Electrochemical Three‐Component Synthesis of Vinyl Sulfonamides via Decarboxylative Sulfonylation of Cinnamic Acids

ChemSusChem, EarlyView.
An efficient, metal‐free electrochemical three‐component reaction of cinnamic acids, SO2, and amines to access (E)‐β‐styryl sulfonamides is reported. Utilizing graphite electrodes and SO2 stock solutions, this decarboxylative protocol proceeds under mild conditions with high regio‐ and stereoselectivity.
Po‐Chung Chien, Harald Kelm, Georg Manolikakes   +2 more
wiley   +1 more source

Evaluation of Agave angustifolia as a Sustainable Alternative to Synthetic Pesticides: Phytochemical Composition and Multi‐Trophic Bioactivity

Flavour and Fragrance Journal, EarlyView.
The pesticidal potential of Agave angustifolia by assessing its anti‐nematic, antimicrobial, and insecticidal activities, alongside phytochemical profiling. ABSTRACT Plant diseases caused by fungi, bacteria, nematodes, and viruses contribute significantly to annual crop losses and economic hardship. Reliance on chemical pesticides, over a thousand used
Rashika Tamta, Shilpi Rawat, Himani Karakoti, Tannu Rani, Pooja Bargali, Ravendra Kumar, Stefania Garzoli, Renu Pandey   +7 more
wiley   +1 more source

Synthesis and Biological Evaluation of 4-(3-Hydroxy-Benzofuran-2-yl) Coumarins [PDF]

, 2014
Various 4-bromomethylcoumarins (1a-k) were reacted with methyl salicylate to yield 2-(2-oxo-2H-chromen-4-ylmethoxy)-benzoic acid methyl esters (2a-k). Formations of (3a-k) were achieved by using DBU under microwave irradiation.
Ebenezer Koyye, ., Jagadeeshreddy Eluru, ., Puttaraju Boregowda, ., Shivashankar Kalegowda, ., Vijaykumar Pandurang Rasal, ., Vito Ferro, .   +5 more
core   +4 more sources

Effects of catechins, resveratrol, silymarin components and some of their conjugates on xanthine oxidase‐catalyzed xanthine and 6‐mercaptopurine oxidation

Journal of the Science of Food and Agriculture, Volume 105, Issue 5, Page 2765-2776, 30 March 2025.
Abstract BACKGROUND Over the past two decades, the global incidence of gout has markedly increased, affecting people worldwide. Considering the side effects of xanthine oxidase (XO) inhibitor drugs (e.g. allopurinol and febuxostat) used in the treatment of hyperuricemia and gout, the potential application of phytochemicals has been widely studied.
Tímea Bencsik, Orsolya Balázs, Róbert G Vida, Balázs Z Zsidó, Csaba Hetényi, Kateřina Valentová, Miklós Poór   +6 more
wiley   +1 more source