The E.S.R. Spectra of Cation Radicals Derived from Phenethyltetrahydroisoquinoline Ethers and Model Compounds

Cation radicals derived from the title compounds by oxidation with thallium tristrifluoroacetate have been characterized. The structures assigned to these radicals suggest that initial oxidation occurs at the phenethyl ring in the compounds examined. Oxidation of homolaudanosine in this way gave the expected homoaporphine.