P. H. Kumar, G. Venkateshwara Rao, B. Narayanaswamy
Nov 3, 2010
Citations
0
Influential Citations
2
Citations
Journal
Synthetic Communications
Abstract
4,5-Diaminochrysazin was prepared from chrysazin by ethylation and nitration followed by reaction with hydroiodic acid (HI). Treatment of 1,8-diethoxy-4,5-dinitroanthraquinone with HI resulted not only in O-deethylation, but also in reduction of nitro groups with more than 95% yield. This is a unique finding and is reported for the first time with a definite improvement over literature methods and is suitable for scale-up.