A Simple Approach to the Synthesis of Fluoren-9-Ones |
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| Authors: | M M V Ramana Prashant V Potnis |
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| Institution: | Department of Chemistry , University of Bombay , Vidyanagari, Santacruz (East), Bombay, 400 098, India |
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| Abstract: | Cyclohexene-l-Carboxylic acid (I) undergoes reaction with various aromatic substrates (2a-i) in presence of Polyphosphoric acid (PPA) at 100ddot]c to give cis-1,2,3,4,4a,9a - hexahydrofluoren-9-ones (3a-i) in good yield. Dehydrogenation of (3a-i) with selenium powder afforded corresponding fluoren-9-ones (4a-i) in high yield. |
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