The oxidation of hexahelicenes. Synthesis of hexahelicene‐5,6‐quinone
作者： J. W. Diesveld , J. H. Borkent , W. H. Laarhoven
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摘要: The remarkable ease with which 1,3,14,16-tetramethylhexahelicene can be oxidised has to ascribed the electronic effect of multiple methyl substitution and not disturbance helical conformation, as might concluded from polarographic oxidation potentials hexahelicene some its derivatives. Oxidation chromic acid in acetic gives hexahelicene-5,6-quinone 70% yield. Its structure was proven by spectroscopic methods.
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