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Chemical Interactions between Aminopyrazoles and 2,3-Dicyano-1,4-naphthoquinone

✍ Scribed by Hassan, Alaa A. ;Mohamed, Nasr K. ;Ibrahim, Yusria R. ;Mourad, Aboul-Fetouh E.

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
252 KB
Volume
1993
Category
Article
ISSN
0947-3440

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✦ Synopsis

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.

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## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v