Addition de dérivés maloniques sur des β-énaminones cycliques

Autor:	Pierre Maitte, Marie-Claude Sacquet, Bernadette Graffe, Marie-Claude Bellassoued-Fargeau
Rok vydání:	1985
Předmět:	Addition reaction chemistry.chemical_compound Sodium ethoxide chemistry Bicyclic molecule Stereochemistry Sodium Organic Chemistry Pyridine chemistry.chemical_element Nuclear magnetic resonance spectroscopy Ring (chemistry) Malononitrile
Zdroj:	Journal of Heterocyclic Chemistry. 22:713-718
ISSN:	1943-5193 0022-152X
DOI:	10.1002/jhet.5570220319
Popis:	L'addition d'acetonitriles actives 6 sur des β-enaminocetones 5 derivees de cetones cycliques et benzyliques, en milieu basique (ethylate de sodium ou triton B) est etudiee. Cette reaction conduit a la formation d'α-py-rone 8 a l'exclusion du cycle pyridinique. La structure des nouveaux derives 8 est etablie par rmn et ir. The addition of activated acctonitriles 6 on cyclic and benzylic β-enaminoketones 5 under basic conditions (sodium ethoxide or trition B) have been investigated. This reaction leads exclusively to the formation of α-pyrones 8 and never to the pyridine ring. The strucutre of the newly synthesized α-pyrone derivatives 8 are supported by nmr and ir spectral data.
Databáze:	OpenAIRE
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