抄録
4-Octylcatechol (1 a), which is expected to give a solvent soluble melanin, was oxidized to the corresponding o-quinone (2). The quinone was trapped as 2-octylphenazine (3) and 5, 6-diacotoxy-8-octyl-1, 4-methanonaphthalene (5) by the reactions with o-phenylenediamine and cyclopentadiene respectively. A catechol dimer (7 a) was also prepared from (1 a). The quinone and the dimer are considered to be the intermediate in melanogenesis of catechol.