Synthesis and some transformations of 5‐benzotriazolyl‐3,4‐dihydropyrid‐2‐ones | Zendy

Katritzky Alan R. | Zendy; Shcherbakova Irina V. | Zendy

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Synthesis and some transformations of 5‐benzotriazolyl‐3,4‐dihydropyrid‐2‐ones

Author(s) -

Katritzky Alan R.,

Shcherbakova Irina V.

Publication year - 1996

Publication title -

journal of heterocyclic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.321

H-Index - 59

eISSN - 1943-5193

pISSN - 0022-152X

DOI - 10.1002/jhet.5570330675

Subject(s) - chemistry , substituent , condensation , dehydrogenation , nitrogen , medicinal chemistry , aryl , organic chemistry , catalysis , thermodynamics , physics , alkyl

5‐(Benzotriazolyl)‐substituted 3,4‐dihydropyrid‐2‐ones were obtained by condensation of 4‐benzo‐triazolyl‐5‐phenyl(methyl)‐5‐oxopentanoic acids with benzyl or aryl amines. Dehydrogenation of 3,4‐dihydropyrid‐2‐ones resulted in 5‐benzotriazolyl‐substituted pyrid‐2‐ones and/or 5‐(phenylamino)pyrid‐2‐ones, products of nitrogen elimination from the benzotriazolyl substituent. In turn, 5‐benzotriazol‐1‐yl‐substituted pyrid‐2‐ones eliminated nitrogen under Graebe‐Ullmann conditions to give indolopyridones.

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