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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Patent•
20 Mar 1973
TL;DR: In this paper, a 2,4,7-TRINITROFLUORENONE, PREPARED by NITRATING FLUORNONE with a MIXTURE of NITRIC and SULFURIC ACIDS, without refluxing, is OBTAINED in high volume by adding addition of water to the reaction mass.
Abstract: 2,4,7-TRINITROFLUORENONE, PREPARED BY NITRATING FLUORENONE WITH A MIXTURE OF NITRIC AND SULFURIC ACIDS, WITHOUT REFLUXING, IS OBTAINED IN HIGH PURITY BY ADDITION OF WATER TO THE REACTION MASS THEREBY PRECIPITATING IT FROM SOLUTION WHILE LEAVING DISSOLVED ISOMERS AND OTHER NITRATION PRODUCTS.
2 citations
Posted Content•
TL;DR: The genes involved in the initial attack on fluorene by Sphingomonas sp. LB126 were investigated in this article, showing 63% and 51% sequence identity with the subunits of an angular dioxygenase from Gram-positive Terrabacter sp. DBF63.
Abstract: In this study, the genes involved in the initial attack on fluorene by Sphingomonas sp. LB126 were investigated. The ? and ? subunits of a dioxygenase complex (FlnA1A2), showing 63% and 51% sequence identity respectively, with the subunits of an angular dioxygenase from Gram-positive Terrabacter sp. DBF63, were identified. When overexpressed in E. coli, FlnA1A2 was responsible for the angular oxidation of fluorene, fluorenol, fluorenone, dibenzofuran and dibenzo-p-dioxin. Moreover, FlnA1A2 was able to oxidize polycyclic aromatic hydrocarbons and heteroaromatics, some of which were not oxidized by the dioxygenase from Terrabacter sp. DBF63. Quantification of resulting oxidation products showed that fluorene and phenanthrene were preferred substrates.
2 citations
TL;DR: The free ion of fluorenone radical anion (FlO) was formed even in tetrahydrofuran (THF) by the flash photolysis of the alkali-metal salts of the sulfonyl carbanion in the presence of neutral FlO as mentioned in this paper.
Abstract: The free ion of fluorenone radical anion (FlO) was formed even in tetrahydrofuran (THF) by the flash photolysis of the alkali-metal salts of the sulfonyl carbanion in the presence of neutral FlO and this was attributed to the ion pair structure of the sulfonyl carbanions.
2 citations
2 citations
TL;DR: In this paper, the effects of benzoin, fluorenone and 2-chlorothioxanthone on the photolysis of poly(methyl acrylate) (PMA) films were investigated.
2 citations