9
44
ZHURAVLEV, VORONCHIKHINA
Synthesis of β-picolinium chlorides (1a–1d). A
10.1021/ef502169q
mixture of 0.01 mol of the ester and equimolar amount
of β-picoline was refluxed for 1–3 h. The formed salts
were filtered off, washed with dry cold ether, and dried
7. Kawano, R., Matsui, H., Matsuyama, C., Sato, A.,
Susan, M.A.B.H., Tanabe, N., and Watanabe, M.,
J. Photochem. Photobiol. (A), 2004, vol. 164, p. 87. doi
1
0.1016/j.jphotochem.2003.12.019
over CaCl in vacuum. The obtained salts were white
2
8
9
. Wang, P., Zakeeruddin, S.M., Moser, J.-E., and Grätzel, M.,
J. Phys. Chem. (B), 2003, vol. 107, p. 13280. doi
or pale yellow solids.
Synthesis of β-picolinium hexafluorophosphates
1
0.1021/jp0355399
(
2a–2d). Equivalent amount of aqueous solution of
. Grande, L., Paillard, E., Kim, G.-T., Monaco, S., and
Passerini, S., Int. J. Mol. Sci., 2014, vol. 15, p. 8122. doi
10.3390/ijms15058122
3
hexafluorophosphoric acid (HPF , ρ = 1.75 g/cm , ω =
6
6
0
0%) was added dropwise at stirring to a solution of
.01 mol of β-picolinium chloride 1а–1d in minimal
10. Sakaebe, H., Matsumoto, H., and Tatsumi, K.,
Electrochim. Acta, 2007, vol. 53, p. 1048. doi 10.1016/
j.electacta.2007.02.054
11. Freemantle, M. and London, C., Chem. Eng. News,
2004, vol. 82, p. 44. doi 10.1021/cen-v082n045.p044
12. Ratti, R., Adv. Chem., 2014, vol. 2014. Article ID
amount of water. The reaction gave two phases: the
upper one was aqueous solution of HCl, and the lower
one was the ionic liquid. The phases were separated;
the ionic liquid was washed several times with water
and dried in vacuum for 24 h.
7
29842. doi 10.1155/2014/729842
ACKNOWLEDGMENTS
13. Olivier-Bourbigou, H., Magna, L., and Morvan, D.,
Appl. Catal. (A), 2010, vol. 373, p. 1. doi 10.1016/
j.apcata.2009.10.008
14. Ullah, Z., Bustam, M.A., and Man, Z., Renewable
Energy, 2015, vol. 77, p. 521. doi 10.1016/
j.renene.2014.12.040
Thermal analysis was performed at the Department
of Physico-Chemical Analysis, Center for Collective
Usage, Tver State University. This work was per-
formed with the government support for young Russian
Candidates of sciences (grant no. 14.Z56.15.4358-МK).
1
5. Garaga, M.N., Nayeri, M., Martinelli, A., J. Mol. Liq.,
015, vol. 210, p. 169. doi 10.1016/j.molliq.2015.06.055
2
1
6. Katsuta, S., Imai, K., Kudo, Y., Takeda, Y., Seki, H.,
and Nakakoshi, M., J. Chem. Eng. Data, 2008, vol. 53,
p. 1528. doi 10.1021/je800152d
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RUSSIAN JOURNAL OF GENERAL CHEMISTRY Vol. 87 No. 5 2017