Publications by authors named "A A Kirillov"
Article Synopsis
- - A study investigated how gold catalysts affect the synthesis of pyrazolines and dihydropyridines from imines and methyl phenylpropiolate, focusing on three different imines with unique substituents.
- - The research found that the type of nitrogen substituent influences the reaction path: NHCOMe leads to outward ring opening and pyrazoline products, while aromatic substituents prompt inward ring opening and dihydropyridine products.
- - The configuration of dihydropyridine is determined by the substituent on the aromatic ring, with electron-donating groups causing direct formation of 1,4-dihydropyridine and electron-withdrawing groups leading to 1,2-dihyd
Article Synopsis
- - Organic peroxides are increasingly important in areas like polymer production and medicinal chemistry, leading to a focus on carefully adding peroxide groups to specific parts of molecules.
- - The Kharasch-Sosnovsky peroxidation method is a key platform that allows for quick and versatile reactions by generating free radicals that can react with various partners.
- - This review highlights recent developments in radical functionalization using the Kharasch method, organized by the type of organic molecules being modified, including C-H, aromatic, and unsaturated bonds.
The mechanism, regioselectivity, and chemoselectivity in a gold-catalyzed oxidative cyclization of diynones with alcohols to give furan-3-carboxylate derivatives were explored by density functional theory (DFT). The obtained results revealed that the first step of the global reaction involves a nucleophilic attack of a pyridine--oxide derivative on the catalyst-ligated diynone, forming a vinyl intermediate that can isomerize to an α,α'-dioxo gold carbene upon the cleavage of the N-O bond. In the second step, a nucleophilic addition is also completed pyridine--oxide instead of an alcohol proposed in the experiment.
View Article and Find Full Text PDFWe report a high nuclear (Cu) complex synthesized via the self-assembly of copper-methylsilsesquioxane induced by the complexation with 1,2-bis(diphenylphosphino)ethane (dppe). The structure includes two cationic Cu(dppe) moieties and an anionic silsesquioxane cage of an unprecedented Cu structural type. The Cu cage fragment exhibits a unique () combination of Si-cyclic/Si-acyclic silsesquioxane ligands and () encapsulation of two different chloride and carbonate species.
View Article and Find Full Text PDFThe type species of the genus Halipegus Looss, 1899, Halipegus ovocaudatus (Vulpian, 1859) is a generalist parasite of different species of amphibians, mainly anurans. To date, the phylogenetic position of this species has not been established. Specimens of H.
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