Flash vacuum pyrolysis of 1‐azolyl‐1‐phenylhydrazono‐2‐propanones | Zendy

ElDusouqui Osman M. E. | Zendy; Dib Hicham H. | Zendy; AlAwadi Nouria A. | Zendy; Abdelkhalik Mervat M. | Zendy; AlEtaibi Alya M. | Zendy

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Flash vacuum pyrolysis of 1‐azolyl‐1‐phenylhydrazono‐2‐propanones

Author(s) -

ElDusouqui Osman M. E.,

Dib Hicham H.,

AlAwadi Nouria A.,

Abdelkhalik Mervat M.,

AlEtaibi Alya M.

Publication year - 2007

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.5570440135

Subject(s) - chemistry , flash vacuum pyrolysis , cinnoline , acetone , pyrolysis , medicinal chemistry , flash (photography) , stereochemistry , organic chemistry , art , visual arts

Flash vacuum pyrolysis (FVP) of 1‐(2‐arylhydrazono)‐1‐(1 H ‐1,2,4‐triazol‐1‐yl)acetone 8a‐c at 650 °C and 2.67 Pa yielded 5‐substituted 1‐(1 H ‐indazol‐3‐yl)ethanone 14a‐c and 4,6‐disubstituted cinnoline 18a‐c . Similarly FVP of 1‐(1 H ‐benzo[ d ]imidazol‐1‐yl)‐1‐(2‐phenylhydrazono)acetone 9a‐c gave 8 H ‐benzo[4′,5′]imidazo[2′,1′:5,1]pyrrolo[2,3‐ c ]cinnoline derivatives 23a‐c . A plausible mechanism is suggested to account for their transformation based on the kinetics and products of reaction.

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