Synthesis of substituted tryptanthrins via oxidation of isatin and its derivatives
作者:T. V. Moskovkina、M. V. Denisenko、A. I. Kalinovskii、V. A. Stonik
DOI:10.1134/s1070428013120051
日期:2013.12
acetonitrile gave indolo[2,1-b]quinazoline-6,12-dione (tryptanthrin) and its 2,8-dimethyl-, 2,8-dibromo-, and 2,8-diiodo derivatives. Oxidative coupling of 5,7-dichloroisatin with isatin under analogous conditions afforded 2,4-dichloroindolo[2,1-b]quinazoline-6,12-dione, while 1,4-dichloroindolo[2,1-b]quinazoline-6,12-dione and 1,4-dichloro-8-methylindolo[2,1-b]quinazoline-6,12-dione were obtained by
在无水乙腈中用高锰酸钾氧化isatin及其5取代的类似物,得到吲哚[2,1 - b ]喹唑啉-6,12-二酮(色胺酮)及其2,8-二甲基-,2,8-二溴-和2,8-二碘衍生物。在类似条件下,将5,7-二氯靛红与靛红氧化偶联,得到2,4-二氯吲哚[2,1 - b ]喹唑啉-6,12-二酮,而1,4-二氯吲哚[2,1 - b ]喹唑啉-6通过将4,7-二氯靛红与靛红和5-甲基靛红分别氧化偶联,得到1,2,2-二酮和1,4-二氯-8-甲基吲哚并[2,1- b ]喹唑啉-6,12-二酮。