PREPARATION AND REACTIONS OF PYRROLO[1,2-ALPHA]QUINOXALINESULPHONIC ACIDS

被引：5

作者：

CHEESEMAN, GW

ROY, PD

机构：

[1] Department of Chemistry, Queen Elizabeth College

来源：

JOURNAL OF THE CHEMICAL SOCIETY C-ORGANIC | 1969年 / 05期

关键词：

D O I：

10.1039/j39690000856

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The major product of sulphonation of pyrrolo[1,2-a]quinoxaline at 130° is the 2-sulphonic acid. The nitro-group of the 1-nitro-3-sulphonic acid is very readily displaced by a chlorine atom by treatment either with concentrated hydrochloric acid or with lithium chloride in dimethylformamide. The corresponding reactions with hydrobromic acid and lithium bromide are more complex; for example, in hydrobromic acid, a mixture of 2,3-dibromo- and 1,2,3-tribromo-pyrrolo[1,2-a]quinoxalines is formed.

引用

页码：856 / +

页数：1

共 10 条

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