Synthesis of polycyclic 3,3′-spirooxindoles and some new 2-arylquinoxalines from (E/Z)- 1-(2-oxo-2-arylethylidene)-5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-2(1H)-ones
作者:Bahman Ebrahimi Saatluo、Ruhollah Amanollahi、Hadi Zare Fazlelahi、Mehdi M. Baradarani、John A. Joule
DOI:10.1016/j.molstruc.2022.132445
日期:2022.5
A facile protocol to access a novel series of spirocyclodiazepines from cyclocondensation of 1-(2-oxo-2-arylethylidene)-5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-2(1H)-ones (derived from 5,6-dihydro-1H-pyrrolo[3,2,1-ij]quinolone-1,2(4H)‑dione) with ethane-1,2-diamines and benzene-1,2-diamines, generates polycyclic spirooxindoles and unexpectedly produces 2-arylquinoxalines instead of spiro[indole-1
从 1-(2-oxo-2-arylethyleneidene)-5,6-dihydro-4 H -pyrrolo[3,2,1- ij ]quinolin-2(1 H的环缩合获得一系列新型螺环二氮杂卓的简便方案)-ones(衍生自 5,6-dihydro-1 H - pyrrolo[3,2,1- ij ]quinolone-1,2(4 H )-dione)与 ethane-1,2-diamines 和 benzo-1,在绿色溶剂中作为有效催化剂的p- TSA存在下,2-二胺生成多环螺氧吲哚并出人意料地分别生成 2-芳基喹喔啉而不是螺[吲哚-1,5-苯二氮卓] 。