The molecular recognition of the α,β-CD and 6<sup>A</sup>,6<sup>C(D)</sup>-o,o′-(4,4′-diphenyloxide-disulfonyl)-β-CD to naphthalene derivatives was studied by
Methane conversions at lower temperature were studied. The aetivity of Y<sub>2</sub>O<sub>3</sub> sample at 823K was fairly high with some formation of C<sub>2<