Palladium-catalyzed carbonylative synthesis of indoloisoindoloquinazolinone derivatives by using CO as a carbonyl source
作者:Shenghai Guo、Fang Wang、Yangfan Liu、Xuesen Fan
DOI:10.1016/j.tet.2019.04.070
日期:2019.6
efficient synthesis of indolo[1,2-c]isoindolo[2,1-a]quinazolin-5(16aH)-one derivatives through palladium-catalyzed cyclocarbonylation reaction of 6-(2-bromoaryl)-5,6-dihydroindolo[1,2-c]quinazolines with the use of CO as a carbonyl source under atmospheric pressure has been disclosed. More intriguingly, the above-mentioned products can also be obtained directly from a one-pot two-step tandem reaction of
通过6-(2-溴芳基)-5,6-二氢吲哚的钯催化环羰基化反应有效合成吲哚[1,2- c ]异吲哚并[ 2,1- a ]喹唑啉-5(16a H)-一衍生物已经公开了在大气压下使用CO作为羰基源的[1,2- c ]喹唑啉。更有趣的是,上述产物也可以直接从2-(1H-吲哚-2-基)苯胺和2-溴苯甲醛的2-锅(1H)两步串联反应制得,所述2-(1H-吲哚-2-基)苯胺是6-(-)的前体。 (2-溴芳基)-5,6-二氢吲哚并[1,2- c ]喹唑啉,在大气压CO压力下以中等收率收率。