Online article for Non-subscribers

Pay per view

Heterocycles has a pay-per-view service for Non-subscribers.
You will be able to directly purchase the full text article through PayPal.
Your purchased Paper can be downloaded after the payment is completed.
An e-mail will be sent the URL to download the paper.
If you have any questions, please contact: purchase@heterocycles.com

Price: ¥ 4,400 (Yen only)
Period: This Article can be accessed for 7 days.

Paper | Regular issue | Vol 48, No. 1, 1998, pp.71-78
Published online, 1st January, 1970
DOI: 10.3987/COM-97-8003
Synthesis of 4-Amino-3-quinolinesulfonic Acids and 4-Aminoquinolines

Leszek Skrzypek

*Department of Organic Chemistry, The Medical University of Silesia, Jagiellonska Str. 4, 41-200 Sosnowiec, Poland

Abstract

The hydrolysis of 4-chloro-3-quinolinesulfonyl chloride (1) gives 4-chloro-3-quinolinesulfonic acid (2) or 1,4-dihydro-4-oxo-3-quinolinesulfonic acid (3). Compound (2) reacts with primary and secondary aliphatic or primary aromatic amines to give 4-amino-3-quinolinesulfonic acid (4). Desulfonation of quinolinesulfonic acids (2,3,4) yields 4(1H)-quinolinone or 4-aminoquinolines (5).