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The syntheses of the dibenzoquinolizinium-salts 3, 13, 16, 20 and 25 which are of spectroscopic interest are described. Their electronic excitation spectra will be published later by Perkampus and coworkers in this journal

zeitschrift für naturforschung b

Überführung von 1-Benzylisochinolinen in Berbinium-Salze: 7. Mitt.: Synthesen spektroskopisch interessanter Dibenzochinolizinium-Salze / Synthesis of Spectroscopic Interesting Dibenzoquinolizinium-Salts