Synthesis and properties of dipyridemium betaines of derivatives of 1,4-benzoquinone and tetracyanoquinodimethane

被引：0

作者：

Yanchishin V.A. ^{[1
]}

Karlivan G.A. ^{[1
]}

Valter R.É. ^{[1
]}

机构：

[1] Riga Technical University

来源：

Chemistry of Heterocyclic Compounds | 1998年 / 34卷 / 3期

关键词：

Dioxide; Organic Chemistry; Pyridine; Benzoquinone; Perchlorate;

D O I：

10.1007/BF02290722

中图分类号：

学科分类号：

摘要：

Reaction of chloranil with excess pyridine gives the poorly stable 2,5-di(N-pyridinium)-3,6-dichloro-1,4-benzoquinone dichloride which is readily hydrolyzed to give the bisbetaine of 2,5-di(N-pyridinium)-1,4-benzoquinone-3,6-dioxide. Treatment with acid gives its mono- and bisprotonated derivatives as the perchlorate and dibromide and bromination gives the betaine 2-bromo-2,5-di(N-pyridinium)-5-cyclohexene-1,3,4-trione-6-oxide perbromide. The reaction of malonodinitrile with 2,5-di(N-pyridinium)-3,6-dichloro-1,4-benzoquinone dichloride in situ gives the poorly stable bisbetaine of 2,5-di(N-pyridinium)-7,7,8,8-tetracyanoquinodimethane-3,6-dioxide. ©1998 Plenum Publishing Corporation.

引用

页码：312 / 315

页数：3

共 19 条

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