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.
1-(
环己烯-1-基)
吡咯烷与3-(α-
氯苄基)
喹喔啉-2(1 H)-的反应导致形成8,9,10,11-四氢
吲哚[1,2- a
喹诺酮-6(5 H)-通过鹳烯胺烷基化和分子内环化的串联序列。氧化脱氢得到
吲哚[1,2 - a ]
喹喔啉-6(5 H)-one。