A NEW METHOD FOR THE SYNTHESIS OF SUBSTITUTED 8,9,10,11-TETRAHYDROINDOLO[1,2-<i>a</i>]QUINOXALIN-6(5<i>H</i>)-ONES
DOI:
https://doi.org/10.1007/3665Keywords:
3-(α-chlorobenzyl)quinoxalin-2(1H)-ones, 1-(cyclohexen-1-yl)pyrrolidines, 8, 9, 10, 11-tetrahydroindolo[1, 2-a]quinoxalin-6(5H)-ones, Stork reaction, tetrahydroindolo[a]annulation, X-ray structural analysisAbstract
The reaction of 1-(cyclohexen-1-yl)pyrrolidines with 3-(α-chlorobenzyl)quinoxalin-2(1H)-ones resulted in the formation of 8,9,10,11-tetrahydroindolo[1,2-a]quinoxalin-6(5H)-ones via a tandem sequence of Stork enamine alkylation and intramolecular annulation. Oxidative dehydrogenation gave indolo[1,2-a]quinoxalin-6(5H)-one.
Authors: Vakhid A. Mamedov*, Elena A. Khafizova, Anastasiya I. Zamaletdinova, Julia K. Voronina, Saniya F. Kadyrova, Ekaterina V. Mironova, Dmitry B. Krivolapov, Ildar Kh. Rizvanov, Oleg G. Sinyashin