Facile and Mild Access to Fluorescent Ladder-Type Indolo[3,2-a]carbazoles via Cascade Annulation,Synthesis

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Facile and Mild Access to Fluorescent Ladder-Type Indolo[3,2-a]carbazoles via Cascade Annulation
Synthesis ( IF 2.6 ) Pub Date : 2020-10-15 , DOI: 10.1055/s-0040-1706473
Wenteng Chen , Yongping Yu , Shuangrong Liu , You Wu , Zhimin Ying , Feng Luo , En Chen

Abstract

A set of fluorescent ladder-type indolo[3,2-a]carbazoles were rationally developed via cascade annulation of indoles and nitroolefins under mild reaction conditions. Diverse functional groups were tolerated. Moreover, structure–photophysical properties relationships (SPPR) of indolo[3,2-a]carbazoles were observed to be simply tuned by changing the electronic nature of the peripheral substituents.