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. 2019 Jun 5;24(11):2122. doi: 10.3390/molecules24112122

Figure 4.

Figure 4

Side by side, comparative visualization of the visible-light-promoted and electrochemical approach to carbazole synthesis regarding reaction conditions, mechanism and product scope. Green = regioselective, orange = non-regioselective isomers, red = no mesomeric substituent tolerated.