Homoazulene electrophilic aromatic subst
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Lawrence T. Scott; Chris A. Sumpter; Mitsunori Oda; Ihsan Erden
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Article
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1989
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Elsevier Science
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French
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Homoazulene (l), like azulene (2), undergoes Friedel-Crafts acylation under exceptionally mild conditions (no Lewis acid) and exhibits the same site-selectivity as azulene; sequential disubstitution takes place exclusively at the a-and a'-positions in the smaller ring.