A Simple Approach to the Synthesis of Fluoren-9-Ones: Synthetic Communications: Vol 25, No 11

Synthetic Communications

An International Journal for Rapid Communication of Synthetic Organic Chemistry

Volume 25, 1995 - Issue 11

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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 100[ddot]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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A Simple Approach to the Synthesis of Fluoren-9-Ones

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A Simple Approach to the Synthesis of Fluoren-9-Ones

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