作者:E. A. Kolodina、N. I. Lebedeva、M. S. Shvartsberg
DOI:10.1007/s11172-007-0392-6
日期:2007.12
Addition of HCl to 2-amino-3-(4-methyl-3-oxopentynyl)-1,4-naphthoquinone in CHCl3 at 20 °C is followed by its cyclization to 4-chloro-2-isopropylbenzo[g]quinoline-5,10-dione. Chlorine atom in this compound can be easily replaced by dialkylamino group upon treatment with secondary amines. 4-Dialkylamino-2-isopropylbenzo[g]quinoline-5,10-dione is also formed by the direct reaction of the starting ketone with secondary amines. Syntheses of 2-amino-3-(4-methyl-3-oxopentynyl)-1,4-naphthoquinone from 2-bromo-and 2-amino-3-iodo-1,4-naphthoquinones are also described.
在 20 °C 的 CHCl3 中向 2-氨基-3-(4-甲基-3-氧代戊炔基)-1,4-萘醌中加入盐酸,然后环化成 4-氯-2-异丙基苯并[g]喹啉-5,10-二酮。这种化合物中的氯原子在用仲胺处理后很容易被二烷基氨基取代。起始酮与仲胺直接反应也可生成 4-二烷基氨基-2-异丙基苯并[g]喹啉-5,10-二酮。此外,还介绍了从 2-溴和 2-氨基-3-碘-1,4-萘醌合成 2-氨基-3-(4-甲基-3-氧代戊炔基)-1,4-萘醌的方法。