3,9,12,18-tetra-t-butyl- and 3,12-di-t-b
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Masahiko Iyoda; Masazumi Nakagawa
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Article
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1972
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Elsevier Science
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French
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In the preceding paper, we reported the syntheses of tetrasubstituted didehydro [l&]annulenes by dehydroxylative aromatieation of l&-membered cyclic glycols which could be prepared by cyclic dimerieation of l,