Results 71 to 80 of about 24,739 (246)
Cu-Mediated trifluoromethylation of benzyl, allyl and propargyl methanesulfonates with TMSCF3
Beilstein Journal of Organic Chemistry, 2013 A Cu-mediated trifluoromethylation of benzyl, allyl and propargyl methanesulfonates with TMSCF3 was developed for the first time. This method offers a convenient and economical approach to various trifluoroethyl-containing compounds.
Xueliang Jiang, Feng-Ling Qing
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Borylcyclopropanes: Synthetic Strategies and Applications
Angewandte Chemie, EarlyView.Borylcyclopropanes (cyclopropanes bearing a boron substituent) sit at the intersection of two privileged frameworks in synthesis. This review provides the first exhaustive survey of their chemistry, spanning metal–carbene, nucleophilic cyclization, radical, hydroboration, and C─H activation routes, and documenting applications in medicinal chemistry ...
Aiza A. Butt, Joseph M. Ready
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Jurnal Info KesehatanWomen’s reproductive health disorders occur due to oxidative stress and can be treated with antioxidant intake. One of them is by utilizing the phytochemical content of garlic (Allium sativum).
Dear Ayu Permata +2 more
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Angewandte Chemie, EarlyView.This work focuses on how to improve the selectivity and activity of electrocatalytic CO2 reduction to C3+ products, by the integration of electrocatalyst and electrolyte co‐design. We summarize key C3+ formation mechanisms and provide a comprehensive reaction network through thermodynamic analysis.
Ling Chen, Damien Voiry, Yan Jiao
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Angewandte Chemie, EarlyView.A stereoselective functionalization method of cyclic imines under mild organocatalytic conditions was developed. Bifunctional cinchona alkaloid catalysts combined with carefully optimized reaction conditions to suppress background reactivity enabled highly enantio‐ and diastereoselective addition reactions of malonates to cyclic imines.
Frederic Kölblin, Helma Wennemers
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CHIMIA, 1999 A historical study on the early chemistry of organic isothiocyanates (mustard oil) and thiocyanates (rhodanides) is presented. The isomeric structures of these compounds were settled by the famous investigations of August Wilhelm Hofmann ...
Hans-Jürgen Hansen
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Angewandte Chemie, EarlyView.Enantioselective aminoarylation of ortho‐allyl anilines is achieved under mild conditions. Key to success is the electrostatically‐directed nature of the key aminopalladation step, achieved by using the sulfonated chiral ligand sSPhos on palladium. A detailed study of electronic trends allows tuning of the sulfonamide protecting group to enable good ...
Max Kadarauch +4 more
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Chemical Constituents of Piper betle Linn. (Piperaceae) Roots
Molecules, 2005 Column chromatography of the alcoholic extract of Piper betle roots furnished aristololactam A-II and a new phenyl propene, characterized as 4-allyl resorcinol, while the petroleum-ether extract yielded a diketosteroid, viz. stigmast-4-en-3,6-dione.
T. Bhattacharya, K. Ghosh
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Supramolecular Polymer‐Surfactant Co‐Assemblies for Multivalent HSV‐1 Inhibition
Angewandte Chemie, EarlyView.Non‐covalent co‐assembly of BTA with antiviral surfactants produces ratio‐dependent morphologies. Fibrous supramolecular polymers exhibit superior HSV‐1 inhibition, revealing multivalent fiber‐virus interactions and highlighting supramolecular co‐assemblies as a powerful strategy for functional biomedical nanomaterials with demonstrated tunable ...
Christian Zoister +12 more
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Cobalt‐Catalyzed Radical Ligand Transfer (RLT) Enables Remote‐Markovnikov Hydroamination of Alkenes
Angewandte Chemie, EarlyView.A cobalt‐catalyzed remote‐Markovnikov 1,3‐hydroamination of allyl carboxylates proceeds through MHAT, 1,2‐radical acyloxy migration (1,2‐RAM), and radical ligand transfer (RLT) from a Co‐N intermediate, providing protected amino alcohols. ABSTRACT Amino alcohols are prevalent in pharmaceuticals, agrochemicals, and functional materials, yet ...
Arman Khosravi +7 more
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