Results 111 to 120 of about 17,074 (296)

Synthesis of Tetrasubstituted Pyrroles from Terminal Alkynes and Imines

, 2016
Tetrasubstituted pyrroles can be obtained via the reaction of terminal alkynes and imines using nBuLi as the base in one step with high chemoselectivity (method 1).
Dongping Wang (134633), Chunxiang Wang (1748512), Yancheng Hu (1819651), Fan Wu (43375), Boshun Wan (1546000)   +4 more
core   +1 more source

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios, Léon Chiriatti, Simon Poppinga, Thomas Speck, Vincent Le Houérou   +4 more
wiley   +1 more source

Multi‐Responsive Bowl‐Shaped Janus Nanomotors Based on Polyitaconic acid/Polypyrrole on the Surface of Iron Oxide Nanoparticles with Chemical, Electrical, and Magnetic Field Actuation for Targeted Drug Delivery Applications

Advanced NanoBiomed Research, EarlyView.
Bowl‐shaped Janus nanomotors with platinum, iron oxide, and polypyrrole integrate catalytic, magnetic, and electric propulsion for targeted drug delivery. They demonstrate controlled, directional motion under varying pH and hydrogen peroxide conditions, with optimal performance in neutral media.
Kimia Tavakoli Dehaghi, Sepideh Khoee, Shima Tavakoli, Oommen P. Varghese   +3 more
wiley   +1 more source

Three Component Thio‐ and Carboboration of Alkynes: A Modular Route to Functionalised Bicyclic Boronates

Angewandte Chemie, EarlyView.
Three‐component thio‐ and carbo‐boration reactions to form functionalised benzoxaborinines and benzazaborinines are reported. The nucleophile scope includes thioethers, thiols, and (hetero)arenes. Mechanistic studies revealed a disparity between thioboration using thioethers and using thiols.
Laura Winfrey, Gary S. Nichol, Stephen P. Thomas, Dominic R. Willcox, Michael. J. Ingleson   +4 more
wiley   +2 more sources

Polystyrenesulfonate-catalyzed synthesis of novel pyrroles through Paal-Knorr reaction

, 2012
Background: The classical Paal-Knorr reaction is one of the simplest and most economical methods for the synthesis of biologically important and pharmacologically useful pyrrole derivatives.
Reddy, Ashwini, Mandira Banik, Ashwini Reddy, Ramirez, Bianca, Bandyopadhyay, Debasish, Bimal K Banik, Banik, Mandira, Banik, Bimal K., Debasish Bandyopadhyay, Bianca Ramirez   +9 more
core   +1 more source

Gold(III) Semiquinone Complexes: Synthesis, Structure, and Application in Photocatalysis

Angewandte Chemie, EarlyView.
Au(III) catecholate complexes engage into electron donor acceptor (EDA) interactions with aryldiazonium salts, enabling single‐electron transfer under green light irradiation. Ligand‐centered one‐electron oxidation to stable semi‐quinone complexes provides a new platform for standalone Au(III) photoredox catalysis, as substantiated by the C–H arylation
Miguel A. Gonzálvez, Félix Léon, Vlad Martin‐Diaconescu, Baptiste Martin, Sonia Mallet‐Ladeira, Juan José Gamboa‐Carballo, Karinne Miqueu, György Szalóki, Didier Bourissou   +8 more
wiley   +2 more sources

N-Heterocyclic carbene–palladium catalysts for the direct arylation of pyrrole derivatives with aryl chlorides

Beilstein Journal of Organic Chemistry, 2013
New Pd–NHC complexes have been synthesized and employed for palladium-catalyzed direct arylation of pyrrole derivatives by using electron-deficient aryl chlorides as coupling partners.
Ismail Özdemir, Nevin Gürbüz, Nazan Kaloğlu, Öznur Doğan, Murat Kaloğlu, Christian Bruneau, Henri Doucet   +6 more
doaj   +1 more source

Synthesis and in vitro study of redox properties of pyrrole and halogenated pyrrole derivatives [PDF]

Journal of the Serbian Chemical Society
The redox balance plays a crucial role in maintaining biological processes under normal conditions. Antioxidants inhibit and reduce harmful oxidation processes, while pro-oxidants can act as anti-cancer agents by promoting ROS-mediated cell death.
Petković Miloš R., Kotur-Stevuljević Jelena M., Jovanović Predrag M., Jovanović Miloš D., Mitrović Nikola M., Simić Milena R., Tasić Gordana D., Savić Vladimir M.   +7 more
doaj   +1 more source

Selective synthesis of functionalized pyrroles from 3-aza-1,5-enynes

, 2016
2-Trifluoromethyl-5-(arylsulfonyl)methyl pyrroles and 2-trifluoromethyl-4-(arylsulfonyl) methyl pyrroles were selectively synthesized from trifluoromethyl-substituted 3-aza-1,5-enynes via a cyclization/sulfonyl group migration cascade catalyzed by ...
Wan, Boshun, Zhao, Yingying, Li, Xincheng, Wang, Haolong, Wang, Dongping, Xin, Xiaoyi   +5 more
core   +1 more source

Application of Flow Thermolysis in Organic Synthesis: Easy Access to α,ω-Bis Thienyl- and Bis Pyrrolyl- Alkanes from Methylene Derivatives of Meldrum's Acid

Molecules, 2000
Thermal decomposition of Meldrum's acid derivatives and rearrangement of (alkylsulfanyl) or (propargylamino)methylene ketene intermediates leads in one step to bis thienyl- or bis pyrrolyl-alkanes.
Hamid Dhimane, Fanck Jourdain, Jean Claude Pommelet   +2 more
doaj   +1 more source