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VILSMEIER REACTION OF 3-METHYL-N-(4′-SUBSTITUTED)-AZOBENZENESULFONAMIDO)-2-QUINOXALINONE DYES

✍ Scribed by Awad, I. M. A.


Book ID
120921787
Publisher
Taylor and Francis Group
Year
1993
Tongue
English
Weight
341 KB
Volume
25
Category
Article
ISSN
0030-4948

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The enamine character of the CH2-C(lla)=N(ll) fragment in the title compounds was studied. Congxatmds I gave l-dimethylaminomethylene products $ after Vilsmeier reaction. The l-formyl derivatives, obtained by alkaline hydrolysis of 5, were isolated as enol tautome~s and were vea'y unstable in acid m