Acridines, Carbazoles and Other Polycyclic Nitrogen Heterocycles

Acridines, Carbazoles and Other Polycyclic Nitrogen Heterocycles Hydrogenation of acridine (44) in decalin over platinum or palladium catalysts at 150°C and 70 atmospheres of hydrogen gave primarily the 9,10 dihydro product, 45. Over rhodium the fully saturated compound, 46, was obtained (Eqn. 

Hydrogenation of carbazole (49) over palladium resulted in the saturation of one of the benzene rings while over rhodium the fully saturated product, 50, predominated (Eqn. 17.48).  

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