Explanation
red Michael addition
black Wrongly assigned reaction center
orange Friedel-Crafts alkylation by alkene
yellow Electron transfer reaction
light green Photochemical addition of acyl radical to electron-deficient olefins
dark green Photoinduced alkylation reaction
green Hydrogen atom (radical) transfer reaction
turquoise Reaction with special reaction mechanism
light blue Hydride abstraction reaction
blue Nazarov reaction
purple Allylation of a keto ester followed by anti-Markovnikov addition of HBr
dark blue Palladium-catalyzed oxyhexatriene cyclisation
black Condensation reaction
brown Photoinitiated radical transformation of simplest crown ethers