Arai, S., Hida, M„ Polycyclic Aromatic Nitrogen

Arai, S., Hida, M., Polycyclic Aromatic Nitrogen Cations, 55, 261. 

Finally, S. Arai and M. Hida review polycyclic aromatic nitrogen cations containing bridgehead (ring fusion) nitrogen atoms. The chemistry of quinolizinium salts was covered by Thyagarajan in Volume 5 of our series back in 1965, and although other partial reviews are available, we now have for the first time a modem comprehensive treatment. 

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