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DURENE (1.2.4.5 tetramethyl benzene) ...

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Originally appearing in Volume V08, Page 697 of the 1911 Encyclopedia Britannica.
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DURENE (1.2.4.5 tetramethyl See also:benzene) C6H2(See also:CH3)4 , a hydro-See also:carbon which has been recognized as a constituent of See also:coal-See also:tar. It may be prepared by the See also:action of methyl iodide on brompseudocumene or 4.6 dibrom metaxylene, in the presence of See also:sodium; or by the action of methyl chloride on See also:toluene, in the presence of anhydrous See also:aluminium chloride. It crystallizes in plates, having a camphor-like See also:smell, melting at 79-8o° C. and boiling at 189-191° C. It is easily soluble in See also:alcohol, See also:ether and benzene, and sublimes slowly at See also:ordinary temperature. On oxidation with chromic See also:acid mixture, it is completely decomposed into carbon dioxide and acetic acid; nitric acid oxidizes it to durylic and cumidic acids [CBH2•(CH3)2•(000H)2].

End of Article: DURENE (1.2.4.5 tetramethyl benzene) C6H2(CH3)4

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