Reaction of 2‐diazo‐1,2‐diarylethanones with benzophenone  n ‐(diaryl)acyl hydrazones: Formation of 1,3,4‐oxadiazolines | Zendy

Singh Girija S. | Zendy

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Reaction of 2‐diazo‐1,2‐diarylethanones with benzophenone n ‐(diaryl)acyl hydrazones: Formation of 1,3,4‐oxadiazolines

Author(s) -

Singh Girija S.

Publication year - 2006

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.5570430634

Subject(s) - chemistry , benzophenone , diazo , intramolecular force , photochemistry , cycloaddition , medicinal chemistry , organic chemistry , catalysis

The reaction of 2‐diazo‐1,2‐diarylethanones with benzophenone N ‐(diaryl)acyl hydrazones leads to the formation of 1,3,4‐oxadiazolines. The products have been characterized on the basis of satisfactory analytical and spectral (IR, 1 H and 13 C NMR, and Mass) data. The mechanism for the formation of products through the reaction of diarylketenes, generated in situ from thermal decomposition of the 2‐diazo‐1,2‐diarylethanones, with imino nitrogen and intramolecular [2 + 3] dipolar cycloaddition is suggested.

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