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- Title
Molecular complexes of 4-nitropyridine and 4-nitroquinoline N-oxides with boron trifluoride and hydrogen chloride as intermediates in S<sub>N</sub>Ar reactions.
- Authors
Nizhnik, Ya.; Andreev, V.; Belashev, B.
- Abstract
Complexation of 4-nitropyridine N-oxides with ν- (BF3, HCl) and π-acceptors (tetracyanoethylene, chloranil, 2,3-dichloro-5,6-dicyano-1,4-benzoquinone, 7,7,8,8-tetracyanoquinodimethane) activates the nitro group to nucleophilic replacement by chlorine. Adducts formed by 4-nitropyridine and 4-nitroquinoline N-oxides with boron trifluoride and hydrogen chloride were studied by IR spectroscopy. It was shown that these complexes belong to the n, ν type and that the donor-acceptor interaction therein involves the oxygen atom of the N-oxide group.
- Subjects
NITROQUINOLINE oxide; BORON trifluoride; HYDROGEN chloride; CHLORINE; OXYGEN; OXIDES; CHEMICAL reactions
- Publication
Russian Journal of Organic Chemistry, 2008, Vol 44, Issue 12, p1824
- ISSN
1070-4280
- Publication type
Article
- DOI
10.1134/S1070428008120191