Title: Duroquinone
CAS Registry Number: 527-17-3
CAS Name: 2,3,5,6-Tetramethyl-2,5-cyclohexadiene-1,4-dione
Additional Names: tetramethyl-p-benzoquinone
Molecular Formula: C10H12O2
Molecular Weight: 164.20
Percent Composition: C 73.15%, H 7.37%, O 19.49%
Literature References: Prepn by reduction of dinitrodurene: Smith, Org. Synth. vol. 10, 40 (1930); Smith, Dobrovolny, J. Am. Chem. Soc. 48, 1420 (1926); by condensation of 2,3-diketopentane with itself in presence of alkalies: von Pechmann, Ber. 21, 1420 (1888); by the action of alkalies on 3,3-dichloropentan-2-one: Faworsky, J. Prakt. Chem. [2] 51, 538 (1895).
Properties: Yellow needles from alc, mp 111-112°. Sublimes. Volatile with steam. Insol in water; sol in alcohol, benzene, ether, hot petr ether.
Melting point: mp 111-112°

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