Fluorine-containing heterocumulenes. 19. Synthesis and reactions of 2-perfluoro-tert-butyl-3,3-diphenyloxaziridine

Conclusions A method is proposed for the production of N-perfluoro-tert-butyldiphenyloxaziridine. Its cycloaddition to electrophilic and nucleophilic dipolarophiles, leading to the synthesis of fluorine-containing oxadiazolidinones, dioxazolidine, and a uniquely stable aziridinone, was investigated.For Communication 18, see [1].Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1788–1791, August, 1979.The authors thank P. V. Petrovskii and A. I. Lutsenko for recording and interpreting the¹³C NMR spectrum.     

Fluorinated heterocumulenes

Conclusions An investigation has been carried out into the cycloaddition of alkoxy-substituted alkenes to N-phenylbis(trifluoromethyl)ketenimine, leading to the synthesis of fluorinated quinolines and azetidine.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 858–862, April, 1976.For No. 12, see [1].     

Fluorinated heterocumulenes

Conclusions Cycloaddition of perfluoroisobutylene to the C=N bond of bistrifluoromethylketenimines takes place in the presence of nucleophilic catalysts.For communication 13, see [1].Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, Vol.8, pp. 1813–1817, August, 1976.     

Fluoro-containing heterocumulenes

Conclusions A new method was developed for the synthesis of fluoro-containing iminoindolenines and indolenides by the 1,4-cycloaddition of isonitriles to N-arylbis(trifluoromethyl)ketenimines.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No.2, pp. 355–358, February, 1973.     

Fluoro-contaiming heterocumulenes

Conclusions A stydy was made of the reaction of oxygen transfer from nitrones to N-aryl-bis(trifluoromethyl)-ketenimines, which leads to the formation of oxindoles.See [l] for Communication 7.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2566–2572, November, 1973.     

Fluorine-containing heterocumulenes 15. Bis(trifluoromethyl)ketene N-(benzenesulfonyl)imine in reactions with vinyl ethyl ether and phenylacetylene

Conclusions We have examined the cycloaddition of vinyl ethyl ether and phenylacetylene to bis (trifluoromethyl) ketene N-(benzenesulfonyl) imine, which forms fluorine-containing azetidines, azetines, and cyclobutenes.For communication 14, see [1].Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 880–883, April, 1978.     

Fluorine-containing allenes

Conclusions Tetrakis(trifluoromethyl)allene reacts with DMF at 20° to give hexafluoroisobutenyldimethylamine.See [1] for Communications 5.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1326–1327, June, 1976.