1154496-92-0Relevant academic research and scientific papers
Molecular complexes of 4-nitropyridine and 4-nitroquinoline N-oxides with boron trifluoride and hydrogen chloride as intermediates in SNAr reactions
Nizhnik,Andreev,Belashev
, p. 1824 - 1830 (2008)
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.
