Results 141 to 150 of about 19,882 (280)

Bismuth Meets Olefins: Ethylene Activation and Reversible Alkene Insertion into Bi─N Bonds

open access: yesAngewandte Chemie, Volume 137, Issue 26, June 24, 2025.
Well‐defined cationic bismuth compounds have been exposed to simple α‐olefins, including the benchmark substrate ethylene. Unprecedented and facile insertion, extrusion, and olefin exchange scenarios have been realized. The scope, mechanism, and functional group tolerance of these peerless transformations have been investigated in a combined ...
Sangeetha Satheesh   +6 more
wiley   +2 more sources

Efficient Synthesis of Cyclopropane-Fused Heterocycles with Bromoethylsulfonium Salt [PDF]

open access: yes, 2013
Aggarwal   +66 more
core   +2 more sources

Radical‐Polar Crossover Bicyclization Enables a Modular Synthesis of Saturated Bicyclic Amines

open access: yesAdvanced Science, Volume 12, Issue 25, July 3, 2025.
Herein, we report the successful realization of a radical‐polar crossover bicyclization reaction from easily available cyclopropylamines and substituted alkenes through photoredox catalysis. This approach introduces an innovative methodology for the de novo synthesis of a diverse collection of 4/5‐, 5/5‐, 6/5‐,7/5‐ and 5/6‐fused saturated bicyclic ...
Dewei Feng   +4 more
wiley   +1 more source

Tomato Disease Combat and Yield Optimization Using Selenium Nanoparticles: A Sustainable Nano‐Agriculture Approach

open access: yesFood Science &Nutrition, Volume 13, Issue 7, July 2025.
This study aimed to explore the effectiveness of Selenium nanoparticles (SeNPs) in combating the devastating pathogens of tomato crop. The study also optimized the dosage of SeNPs, for potential antimicrobial and pesticidal efficacy. ABSTRACT Tomatoes are a crucial component of the global food system but are susceptible to pests and diseases, such as ...
Zainab Maqbool   +4 more
wiley   +1 more source

About Bases and Superbases

open access: yesCHIMIA, 1996
Butyllithium requires activation in order to become capable of abstracting a proton from weakly acidic hydrocarbons like cyclopropanes, simple olefins, or arenes.
Florence Mongin   +2 more
doaj   +2 more sources

Oxidation chemistry of d^0 organometallic complexes [PDF]

open access: yes, 1990
Electron-transfer processes can play an important role in organometallic chemistry. Herein, we demonstrate that even d^0 organometallic complexes exhibit a rich redox chemistry and present electrochemical, kinetics, and stereochemical studies that ...
Burk, Mark J.   +3 more
core  

In Vivo and In Silico Evaluation of Analgesic and Hypoglycemic Activities of Methanolic Extract of Codariocalyx gyroids

open access: yesFood Science &Nutrition, Volume 13, Issue 7, July 2025.
Codariocalyx gyroides (Roxb. ex Link) Hassk has been traditionally valued for its medicinal properties, yet its hypoglycemic and analgesic effects remain underexplored. This study demonstrated that the methanolic extract of Codariocalyx gyroides (MECG) exhibited dose‐dependent analgesic efficacy in Swiss albino mice and significantly reduced plasma ...
Nilufar Sultana   +8 more
wiley   +1 more source

Home - About - Disclaimer - Privacy