18540-41-5Relevant academic research and scientific papers
A New Synthetic Route to 6,7-Dichloro-5,8-quinoxalinedione and Synthesis of Its Derivatives
Han, Gyoonhee,Shin, Kye Jung,Kim, Dong Chan,Yoo, Kyung Ho,Kim, Dong Jin,Park, Sang Woo
, p. 2495 - 2502 (2007/10/03)
6,7-Dichloro-5,8-quinoxalinedione (2), an analogue of Dichlone, was prepared from 4-aminophenol (3) in 27percent overall yield in 8 steps via chloroxidation of the sulfuric acid salt of 8-amino-5-quinoxalinol (9) as a key step.And two derivatives, 6-chloro-5-hydroxypyrazinophenazine (10) and pyridoimidazoquinoxaline-6,11-dione (11), were prepared by reaction of 2 with 1,2-phenylenediamine and 2-aminopyridine in 79percent and 46percent yields, respectively.
