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Some observations on the electrochemical reduction of pyridazin-3-ones

✍ Scribed by R. Hazard; A. Tallec; R. Tardivel; J.J. Bourguignon; C.G. Wermuth

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
355 KB
Volume
35
Category
Article
ISSN
0013-4686

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✦ Synopsis

Controlled potential electroreduction of three pyridazin-3-ones has been investigated in protic medium. Whatever the acidity, the first reduction always takes place at the 4,5-double bond. In an ammoniacal buffer, further reduction leads to the tetrahydro derivative. In acidic medium, reduction of N-2 unsubstituted 4,5-dihydropyridazine-3-ones gives N-aminopyrrolidin-2-ones, whereas 2-methyl 4,5dihydropyridazin-3-one leads to a pyrrolin-2-one.

Key worak electroreduction, pyridazin-3-ones, N-aminopyrrolidin-2-ones, pyrolin-2-ones.

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