Problem of rapid exchange of nonequivalent cyclopentadienyl rings in tetracyclopentadienyl derivatives of group IVA metals

Conclusions A comparison of the experimental data obtained in studying the NMR, IR and Raman spectra, the x-ray structure analysis, and the dipole moments of (C₅H₅)₄Zr and (C₅H₅)Hf testifies to the exceeding ease of the mutual interchanges of the differently bonded cyclopentadienyl rings in these compounds.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 187–188, January, 1972.     

The reaction of fluorine-containing β-alkoxyvinyl ketones and β-diketones with isocyanides

Conclusions Isocyanides react with fluorine-containing vinyl ketones to form initially 1,4-dycloaddition products. If a mobile hydrogen atom is present in the cycloadduct rearrangement takes place to a product with a migrated multiple bond in the ring or to a linear dienecarboxamide (the result of double isomerization involving ring opening).Translated from Izvestiya Akademiya Nauk SSSR, Seriya Khimicheskaya, No. 9, pp. 2061–2065, September, 1977.     

Bis(trifluoromethyl)ketene anil

Summary Bis(trifluoromethyl)ketene anil was obtained by the reaction of triphenylphosphine phenylimine with perfluoroisobutylene.     

Reaction of isonitriles with perfluoromethacrylic acid derivatives

Conclusions The amide and ester of perfluoromethacrylic acid easily add isonitriles to give the 1,4-cycloaddition adducts.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1898–1899, August, 1975.     

Synthesis of unsaturated compounds containing the nitrodifluoromethyl group

Conclusions We synthesized a number of saturated and unsaturated compounds containing the nitrodifluoromethyl group.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2742–2744, December, 1972.     

On the interaction of fluorinated ketones with olefins

Conclusions The reaction of fluorinated ketones with a number of olefins was studied.Translated from Izvestiya Akadeemii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1466–1469, August, 1965 Original article submitted November 20, 1964