Molecular complexes of 4-nitropyridine and 4-nitroquinoline N-oxides with boron trifluoride and hydrogen chloride as intermediates in SNAr reactions

被引：0

作者：

Ya. P. Nizhnik

V. P. Andreev

B. Z. Belashev

机构：

[1] Petrozavodsk State University,Karelian Research Center

[2] Russian Academy of Sciences,undefined

来源：

Russian Journal of Organic Chemistry | 2008年 / 44卷

关键词：

Nitro Group; Electronic Absorption Spectrum; Boron Trifluoride; Hydrogen Chloride; Tetracyanoethylene;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

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.

引用

页码：1824 / 1830

页数：6

共 28 条

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