Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Vladimir O. Smirnov"'
Publikováno v:
Chemical Communications. 57:4823-4826
A reaction of intramolecularly disposed phosphonium and phenoxide (or thiophenoxide) fragments with difluorocarbene affording all-carbon λ5-phosphoranes is described. The presence of electron-withdrawing CHF2-groups at the phosphonium center is impo
Publikováno v:
Angewandte Chemie International Edition. 59:12428-12431
Frustrated Lewis pairs consisting of diphenylphosphino and boryl groups located at the ortho-position can trap difluorocarbene affording stable zwitterionic adducts. The reaction can be reversed to release difluorocarbene at elevated temperatures.
Publikováno v:
Angewandte Chemie. 132:12528-12531
Publikováno v:
Journal of Fluorine Chemistry. :110025
Publikováno v:
Chemical communications (Cambridge, England). 57(39)
A reaction of intramolecularly disposed phosphonium and phenoxide (or thiophenoxide) fragments with difluorocarbene affording all-carbon λ5-phosphoranes is described. The presence of electron-withdrawing CHF2-groups at the phosphonium center is impo
Autor:
Egor A Ilin, Alexander D. Dilman, Vladimir O. Smirnov, Alexander A. Korlyukov, Alexander D. Volodin
Publikováno v:
Chemical communications (Cambridge, England). 56(52)
Compounds bearing ortho-oriented dialkylamino and boryl groups can serve as efficient reagents to trap difluorocarbene leading to zwitterionic ammonium borates featuring N-CF2-B fragments. The reagents are shelf-stable and can be used as mechanistic
Autor:
Anton S. Maslov, Vladimir O. Smirnov, Alexander D. Dilman, Alexander A. Korlyukov, Vladimir A. Kokorekin
Publikováno v:
Chemical Communications. 54:2236-2239
A method for the generation of the CF3 radical from CF3-substituted borate complexes bearing a pyridine-N-oxide ligand is described. Cleavage of the C–B bond occurs via single electron reduction by a Cu(I) photocatalyst activated by visible light.
Autor:
Vitalij V. Levin, Vladimir A. Kokorekin, Liubov I. Panferova, Marina I. Struchkova, Alexander D. Dilman, Vladimir O. Smirnov
Publikováno v:
The Journal of Organic Chemistry. 82:745-753
A method for the synthesis of 3-fluoroindoles from N-arylamines substituted with the CF2I group is described. The reaction is mediated by a ruthenium photocatalyst in the presence of a substoichiometric amount of triphenylphosphine upon irradiation w
Publikováno v:
The Journal of Organic Chemistry. 80:9349-9353
A method for the iododifluoromethylation of aromatic aldehydes using (bromodifluoromethyl)trimethylsilane (Me3SiCF2Br) is described. The selective formation of the CF2I group is based on using sodium iodide, with the sodium serving as a scavenger of
Autor:
Vladimir O. Smirnov, Alexander D. Dilman, Dmitry E. Arkhipov, Marina I. Struchkova, Anton S. Maslov
Publikováno v:
Tetrahedron Letters. 56:5048-5050
A new gem-difluorinated silicon reagent bearing a pyrrolidine dithiocarbamate substituent was prepared by the reaction of (bromodifluoromethyl)trimethylsilane with the corresponding potassium dithiocarbamate. The obtained reagent was employed in the