The isomerisation of α- and β-benzyl- and substituted-benzyl-naphthalenes catalysed by anhydrous aluminium chloride or toluene-p-sulphonic acid has been studied.
Halogen-substituted-benzylnaphthalenes failed to isomerise whilst p-methyl- and p-methoxy-benzylnaphthalenes, isomerise more readily than benzylnaphthalene. The isomerisation is reversible, and aluminium chloride is more effective than toluene-p-sulphonic acid.
A. M. Osman, M. Z. A. Badr and A. E. Abdel-Rahman, J. Chem. Soc. C, 1971, 2264 DOI: 10.1039/J39710002264
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