A Laser Flash-Photolysis Study of the Bimolecular Reactions
of Singlet Fluorinated Arylnitrenes

D. A. Pol’shakov^1,2, Yu. P. Tsentalovich³, and N. P. Gritsan^1,2

¹ Institute of Chemical Kinetics and Combustion, Siberian Division,
Russian Academy of Sciences, Novosibirsk, 630090 Russia

² Novosibirsk State University, Novosibirsk, 630090 Russia

³ International Tomography Center, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090 Russia

Received September 14, 2000

Abstract—The kinetics and mechanisms of the reactions of singlet perfluoro-4-biphenylnitrene and N-propyl-
4-nitreno-2,3,5,6-tetrafluorobenzylamide with various amines, pyridine, and dimethylsulfoxide were studied
by laser flash photolysis. The reactions of singlet arylnitrenes with amines are two-step processes. The primary
step of the process is adduct formation; the rate constant of this reaction is high and lies within the range
410⁷–2 10⁸ l mol^–1 s^–1 for the tested secondary amines. The second step (1,2-hydrogen shift) was acceler-
ated in the presence of water.

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