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Synthesis and reactions of hydroxyspiro[5.2]cyclooctenones based on the cyclization of the dianions of acetone and diethyl 2-oxopropylphosphonate with 1,1-diacylcyclopropanes |
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| Authors: | Nasir Rasool Muhammad Adeel Peter Langer |
| Institution: | a Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany b Leibniz-Institut für Katalyse e. V.an der Universität Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany c Institut für Anorganische und Analytische Chemie, Universität Jena, Lessingstraße 8, D-07743 Jena, Germany |
| Abstract: | The cyclization of the dianions of diethyl 2-oxopropylphosphonate and of acetone with 1,1-diacylopropanes afforded hydroxyspiro5.2]cyclooctenones which were transformed, by homo-Michael reactions with tetrabutylammonium halides, into various functionalized phenols or their dimers. |
| Keywords: | Cyclizations Cyclopropanes Dianions Regioselectivity Spiro-compounds |
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