CYCLOADDITION AND CYCLOCONDENSATION
1245
Fokin, A.V., Russ. Chem. Bull., 1993, vol. 42, no. 3,
p. 512. DOI: 10.1007/BF00698443.
dione (VIIIb) was obtained similarly. Yield 2.9 g
(82%), mp 128–130°С. Н NMR spectrum (DMSO-
1
3. Golubev, A.S., Tyutin, V.Yu., Chkanikov, N.D.,
Kolomiets, A.F., and Fokin, A.V., Bull. Russ. Acad.
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s11172-012-0272-6.
d6), δ, ppm: 0.96 s (3H, Me), 1.07 s (3H, Me), 1.95 d
(2Н, CH2, JАВ 13.7 Hz), 2.38 d (1H, CH2, J 14.1 Hz),
2.84 d (1H, CH2, J 13.7 Hz), 4.58 d (2Н, CH2, JАВ
16.4 Hz), 7.00 s (1Н, NH), 7.31 d. d (1Н, CHAr, J 4.5,
1.6 Hz), 7.40 d (1Н, CHAr, J 7.8 Hz), 7.40 t. d (1Н,
CHAr, J 7.8, 1.6 Hz), 8.52 d (1Н, CHAr, J 4.5 Hz). 19F
NMR spectrum (DMSO-d6): δF 16.33 ppm. Found, %:
C 57.46; H 4.63; N 7.75. C17H17F3N2O3. Calculated,
%: C 57.63; H 4.84; N 7.91.
1
The H and 19F NMR spectra were registered on a
Bruker DPX 200 spectrometer operating at 200.13 and
188.29 MHz, internal reference TMS, external
reference CF3COOH, respectively. Melting points
were determined using glass capillaries.
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Pushin, A.N., and Martynov, I.V., Russ. Chem. Bull.,
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ACKNOWLEDGMENTS
8. Sokolov, V.B. and Aksinenko, A.Yu., Russ. Chem.
Bull., 1998, vol. 47, no. 4, p. 727. DOI: 10.1007/
BF02495989.
9. Sokolov, V.B., Aksinenko, A.Yu., and Martynov, I.V.,
Russ. Chem. Bull., 2001, vol. 50, no. 6, p. 1113. DOI:
10.1023/A:1011354326781.
10. Sokolov, V.B., Aksinenko, A.Yu., Epishina, T.A.,
Goreva, T.V., and Martynov, I.V., Russ. Chem. Bull.,
2005, vol. 54, no. 2, p. 472. DOI: 10.1007/s11172-005-
0281-9.
11. Sokolov, V.B. and Aksinenko, A.Yu., Russ. Chem.
Bull., 2005, vol. 54, no. 6, p. 1514. DOI: 10.1007/
s11172-005-0438-6.
This work was performed within the Programs
“Development of methods for obtaining chemical
substances and new materials” and “Medical and
biomedical chemistry” of the Department of Chemistry
and Materials Science of the Russian Academy
Sciences. The work was financially supported by the
Russian Foundation for Basic Research (grant no. 11-
03-00496-a).
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