论文信息 - Cyclohepta[l]phenanthrenylium Ions. Intramolecular Cyclization of 2-Biphenylylcycloheptatrienes

Cyclohepta[l]phenanthrenylium Ions. Intramolecular Cyclization of 2-Biphenylylcycloheptatrienes

The intramolecular Friedel-Crafts type reaction of 3′-methoxy- and 3′,5′-dimethoxy-2-biphenylylcycloheptatrienes allowed to construct the corresponding cyclohepta[l]phenanthrenylium ions in reasonable yields. Some physical properties (UV, 1H-NMR, and pKR+) of these new cations were also described.

I. Murata | H. Miyake | K. Yamamura | Kazuko Azumi

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