A visible-light-driven photoredox reaction of tetrahydroisoquinoline with 2-azirines is described. 4,7-Bis(4-methoxyphenyl)benzo[][1,2,5]thiadiazole, a benzothiadiazole (BTD) derived fluorophore, is used as an organic photoredox catalyst, and the reaction offers an efficient access to 5,6-dihydroimidazo[2,1-]isoquinolines with a broad range of functional groups. The resulting 5,6-dihydroimidazo[2,1-]isoquinolines present strong photoluminecence in solutions and powders and could be applied in the fabrication of blue OLED devices.
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| http://dx.doi.org/10.1021/acs.joc.1c00590 | DOI Listing |
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