Crown-ether styryl dyes: 15. Synthesis and two pathways of regio- and stereospecific cation-dependent [2+2]-autophotocycloaddition of chromogenic 15-crown-5-ether betaines of quinoline series
Publication type: Journal Article
Publication date: 1995-11-01
scimago Q3
SJR: 0.305
CiteScore: 2.8
Impact factor: —
ISSN: 10665285, 15739171
General Chemistry
Abstract
Styryl dyes (4a,b) containing a 15-crown-5 fragment and isomeric 2- and 4-quinolinium residues with anN-sulfopropyl substituent undergo [2+2]-autophotocycloaddition to give cyclobutane derivatives (9a,b) in acetonitrile only in the presence of Mg(ClO4)2 or Ca(ClO4)2. The stereospecificity of both pathways of photocycloaddition and its efficiency are explained by the preorganization of the supramolecular dimers derived from thetrans-isomers of the dyes when they are bound into complexes with Mg and Ca cations.
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Gromov S. P. et al. Crown-ether styryl dyes: 15. Synthesis and two pathways of regio- and stereospecific cation-dependent [2+2]-autophotocycloaddition of chromogenic 15-crown-5-ether betaines of quinoline series // Russian Chemical Bulletin. 1995. Vol. 44. No. 11. pp. 2131-2136.
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Gromov S. P., Fedorova O., Ushakov E. N., Buevich A. V., Alfimov M. Crown-ether styryl dyes: 15. Synthesis and two pathways of regio- and stereospecific cation-dependent [2+2]-autophotocycloaddition of chromogenic 15-crown-5-ether betaines of quinoline series // Russian Chemical Bulletin. 1995. Vol. 44. No. 11. pp. 2131-2136.
Cite this
RIS
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TY - JOUR
DO - 10.1007/BF00696719
UR - http://link.springer.com/10.1007/BF00696719
TI - Crown-ether styryl dyes: 15. Synthesis and two pathways of regio- and stereospecific cation-dependent [2+2]-autophotocycloaddition of chromogenic 15-crown-5-ether betaines of quinoline series
T2 - Russian Chemical Bulletin
AU - Gromov, S P
AU - Fedorova, O.A.
AU - Ushakov, E N
AU - Buevich, A V
AU - Alfimov, M.V.
PY - 1995
DA - 1995/11/01
PB - Springer Nature
SP - 2131-2136
IS - 11
VL - 44
SN - 1066-5285
SN - 1573-9171
ER -
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BibTex (up to 50 authors)
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@article{1995_Gromov,
author = {S P Gromov and O.A. Fedorova and E N Ushakov and A V Buevich and M.V. Alfimov},
title = {Crown-ether styryl dyes: 15. Synthesis and two pathways of regio- and stereospecific cation-dependent [2+2]-autophotocycloaddition of chromogenic 15-crown-5-ether betaines of quinoline series},
journal = {Russian Chemical Bulletin},
year = {1995},
volume = {44},
publisher = {Springer Nature},
month = {nov},
url = {http://link.springer.com/10.1007/BF00696719},
number = {11},
pages = {2131--2136},
doi = {10.1007/BF00696719}
}
Cite this
MLA
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Gromov, S. P., et al. “Crown-ether styryl dyes: 15. Synthesis and two pathways of regio- and stereospecific cation-dependent [2+2]-autophotocycloaddition of chromogenic 15-crown-5-ether betaines of quinoline series.” Russian Chemical Bulletin, vol. 44, no. 11, Nov. 1995, pp. 2131-2136. http://link.springer.com/10.1007/BF00696719.
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