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卷 42, 期 2, 页码 231-234出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4039(00)01906-7
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Treatment of allylic alcohols 5, easily prepared from dioxene and methoxyacetophenones, with 1-(trimethylsilyloxy)cyclopentene in the presence of a catalytic amount of TMSOTf in acetonitrile, afforded a polycyclic acetal 6 by domino nucleophilic substitution, annulation and intramolecular Friedel-Crafts alkylation reaction sequence. Acid-mediated cleavage of the acetal moiety led to fused seven-membered carbocyclic rings or to substituted naphthalenes. (C) 2000 Elsevier Science Ltd. All rights reserved.
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