Synthesis of Pyrroloquinolines as Indole Analogues of Flavonols
作者:David StC. Black、Naresh Kumar、Peter S. R. Mitchell
DOI:10.1021/jo010915b
日期:2002.4.1
into a range of 7-indolyl chalcones 13 by reaction with aryl aldehydes under basic conditions. Oxidation of the chalcones 13 with alkaline hydrogen peroxide gave the isolable epoxides 14, which were cyclized with further base treatment into the indole flavonols, or 5-hydroxy-6-oxopyrroloquinolines 15. The relatedcompounds 25 and 26, examples of indole flavanones and flavones, respectively, were also