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Anthracene is a solid polycyclic aromatic hydrocarbon (PAH) of formula C 14 H 10, consisting of three fused benzene rings. It is a component of coal tar . Anthracene is used in the production of the red dye alizarin and other dyes, as a Scintillator to detect high energy particles, as production of pharmaceutical drugs.
The earliest example of a [4+4] photocycloaddition was the photodimerization of anthracene, discovered in 1936. [1] This reaction has remained one of the most reliable photocycloadditions and is the basis of continuing investigation.
The oxidation of anthracene. Chromium(VI) is the typical oxidant. The Friedel-Crafts reaction of benzene and phthalic anhydride in presence of AlCl 3. o-Benzoylbenzoic acid is an intermediate. This reaction is useful for producing substituted anthraquinones. The Diels-Alder reaction of naphthoquinone and butadiene followed by oxidative ...
The reaction is named after its inventor, the German chemist Karl Elbs, also responsible for the Elbs oxidation. The reaction was published in 1884. The reaction was published in 1884. [ 1 ] [ 2 ] [ 3 ] Elbs however did not correctly interpret the reaction product due to a lack of knowledge about naphthalene structure.
The reaction of anthracene with N-methylformanilide, also using phosphorus oxychloride, gives 9-anthracenecarboxaldehyde: N -Methylformanilide and anthracene and phosphorus oxychloride In general, the electron-rich arene ( 3 ) must be much more active than benzene for the reaction to proceed; phenols or anilines are good substrates.
He is credited with developing the Elbs reaction for the synthesis of anthracene. He is also responsible for the Elbs persulfate oxidation. From 1877 he studied natural sciences at the University of Freiburg, receiving his doctorate in 1880 under the direction of Adolf Karl Ludwig Claus.
The anthraquinone process, also called the Riedl–Pfleiderer process, is a process for the production of hydrogen peroxide, which was developed by IG Farben in the 1940s., [1] The industrial production of hydrogen peroxide is based on the reduction of oxygen, as in the direct synthesis from the elements.
As Fe(II) is a common oxidation state for Fe, many organoiron(II) compounds are known. Fe(I) compounds often feature Fe-Fe bonds, but exceptions occur, such as [Fe(anthracene) 2] −. [13] cyclopentadienyliron dicarbonyl dimer