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:

Price: ¥ 4,320 (Yen only)
Period: This Article can be accessed for 7 days.

Paper | Regular issue | Vol 29, No. 7, 1989, pp.1309-1316
Published online, 1st January, 1970
DOI: 10.3987/COM-89-4976
Pyridazines XLII. On the Synthesis of N-5-substitutes Pyridazino[4,5-b]quinolin-10(5H)-ones

Norbert Hainder, Gottfried Heinisch,* and Ivo Volf

*Institute of Pharmaceutical Chemistry, University of Vienna, Währinger Strasse 10, A-1090 Vienna, Austria


Procedures for the preparation of diazaacridones 6 bearing branched or higher alkyl chains at N-5 were developed utilizing the pyridazinone 7 as a key compound. An unexpected side reaction observed in the course of the synthesis of 7 is described.