One-pot construction of diverse and functionalized isochromenoquinolinediones by Rh(iii)-catalyzed annulation of unprotected arylamides with 3-diazoquinolinediones and their application for fluorescence sensor.

Currently, the use of fluorescent molecular probes emitting in the visible region has become quite significant and have attracted considerable attention in academic and industrial research. 22 Initially, the compound 4a (10 μM) was optimized in seven different solvents: 1,4-dioxane, dimethyl sulfoxide (DMSO), 1,2-dichloroethane (DCE), acetonitrile (ACN), dichloromethane (DCM), tetrahydrofuran (THF) and ethanol (EtOH) (Fig.

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