Synthesis of Indolo[2,1-a]isoquinolines via Copper-Catalyzed C–C Coupling and Cyclization of 2-(2-Bromoaryl)-1H-indoles with 1,3-Diketones
作者:Chan Cho、Ha Lee、Pham Dao、Young-su Kim
DOI:10.1055/s-0036-1591589
日期:2018.8
Abstract 2-(2-Bromoaryl)-1H-indoles are coupled and cyclized with 1,3-diketones by microwave irradiation in DMF in the presence of a catalytic amount of copper(I) iodide along with a base to afford the corresponding indolo[2,1-a]isoquinolines in moderate to good yields. 2-(2-Bromoaryl)-1H-indoles are coupled and cyclized with 1,3-diketones by microwave irradiation in DMF in the presence of a catalytic
摘要 通过在催化量的碘化亚铜(I)和碱存在下,在DMF中微波辐射,将2-(2-溴芳基)-1 H-吲哚偶联并与1,3-二酮环合,得到相应的吲哚[ 2,1- a ]异喹啉的产量中等至良好。 通过在催化量的碘化亚铜(I)和碱存在下,在DMF中微波辐射,将2-(2-溴芳基)-1 H-吲哚偶联并与1,3-二酮环合,得到相应的吲哚[ 2,1- a ]异喹啉的产量中等至良好。
"Site Selective" Formation of Low-Valent Titanium Reagents: An "Instant" Procedure for the Reductive Coupling of Oxo Amides to Indoles
The palladium-catalyzed cyclization of 2-(2-bromoaryl)-3-arylindoles provides a new versatile approach to dibenzo[a,c]carbazoles. The reaction tolerates a variety of useful substituents including chloro, nitro, ether, cyano, keto, and ester groups.