Topic
Fluorenone
About: Fluorenone is a research topic. Over the lifetime, 1067 publications have been published within this topic receiving 17162 citations. The topic is also known as: Diphenylene ketone & 9-Oxofluorene.
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23 citations
TL;DR: In this article, a ruthenium catalyzed regioselective copolymerization reaction between anthrone, fluorenone or xanthone and α,ω-dienes such as 1,3-divinyltetramethyldisiloxane and 3,3,6,6-tetramethyl-3, 6-disila-1,7-octadiene was reported.
Abstract: This paper reports a novel ruthenium catalyzed regioselective copolymerization reaction between anthrone, fluorenone or xanthone and α,ω-dienes such as 1,3-divinyltetramethyldisiloxane and 3,3,6,6-tetramethyl-3,6-disila-1,7-octadiene. This reaction involves the ruthenium catalyzed regioselective Anti-Markovnikov insertion of the carbon-carbon double bonds of the α,ω-dienes into the aromatic carbon-hydrogen bonds which are ortho to the carbonyl group of anthrone, fluorenone or xanthone. Similar ruthenium catalyzed copolymerization reactions between acetophenone and α,ω-dienes [1] have been recently reported as have reactions between acetophenone and alkenes to yield monomeric ortho-alkyl substituted acetophenones [2].
23 citations
TL;DR: The 2 : 1-adducts were confirmed to be produced by the cycloaddition of 3 toward the carbonyl group of 2-benzopyrylium-4-olate as discussed by the authors.
Abstract: The Cu(acac)2-catalyzed decomposition of o-(diazoacetyl)benzoates in the presence of carbonyl compounds such as benzaldehydes, acetophenones, acetone, fluorenone, and anthraquinone gave 2 : 1-adducts of the corresponding 2-benzopyrylium-4-olate (3) and the carbonyl compound, together with 1 : 1-adducts. The 2 : 1-adducts were confirmed to be produced by the cycloaddition of 3 toward the carbonyl group of the 1 : 1-adducts which have bulky aryl groups on exo-direction. The product ratios of the 2 : 1-adducts were explained according to the MNDO calculation.
23 citations
22 citations
TL;DR: The electrochemical reduction of a fluorene-based conjugated polymer, poly(9-fluorenone-alt-9,9-dioctylfluorene), was investigated for the first time and was found to be tunable by varying the reduction level.
Abstract: The electrochemical reduction of a fluorene-based conjugated polymer, poly(9-fluorenone-alt-9,9-dioctylfluorene), was investigated for the first time. The carbonyl group in the fluorenone unit was selectively and quantitatively converted to the methylene group, as determined by 1H NMR, IR, and energy-dispersive X-ray (EDX) analysis. The optical and electrochemical properties of the polymers were studied by UV−vis, photoluminescence (PL), and cyclic voltammetry (CV) measurements and were found to be tunable by varying the reduction level.
22 citations