Chemical Interactions between Aminopyrazoles and 2,3‐Dicyano‐1,4‐naphthoquinone
- 14 June 1993
- journal article
- Published by Wiley in European Journal of Organic Chemistry
- Vol. 1993 (6) , 695-697
- https://doi.org/10.1002/jlac.1993199301112
Abstract
2,3‐Dicyano‐1,4‐naphthoquinone (DCNQ), the easily obtainable isomer of 2‐(dicyanomethylene)indane‐1,3‐dione (CNIND), reacts with arylazo‐, pyridylazo‐ and arylaminopyrazoles 1–3 via charge‐transfer (CT) complexation to yield pyrazolo[2,3‐α]quinazolinediones 10a–f and pyrazolo[2,3‐α]‐quinazolinyl acetates 11a–e. Furthermore, aminopyrazole 3 reacts with 2,3‐dichloronaphthoquinone (DCHNQ) to afford the naphthoquinoimidazopyrazole 13. The mechanism of the formation of products 10 and 11 is discussed.Keywords
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