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

Paper | Regular issue | Vol 29, No. 6, 1989, pp.1077-1090
Published online, 1st January, 1970
DOI: 10.3987/COM-89-4836
Preparation of 4-Amino-3(2H)-pyridazinones by Direct Amination of 3(2H)-Pyridazinones with Hydrazine

William J. Coates and Alexander McKillop

*Smith Kline & French Research Ltd., The Frythe, Welwyn, Hertfordshire, AL7 1EX, U.K.


Reaction of a variety of 3(2H)-pyridazinones with hydrazine hydrate gives moderate to excellent yields of the corresponding 4-amino-3(2H)-pyridazinones.