Catalytic oxidation of 2-ethyl-5,6,7,8-tetrahydro-9,10-anthrahydroquinone

Catalytic oxidation of 2-ethyl-5,6,7,8-tetrahydro-9,10-anthrahydroquinone Catalytic oxidation rate of 2-ethyl-5,6,7,8-tetrahydro-9,10-anthrahydroquinone (ETHAHQ) using oxygen in a stirred reactor was studied. It was found that NaOH and some amines exhibit catalytic properties suitable for this oxidation. In the presence of NaOH with its amountof-substance concentration of 2 mmol/l(l)-phase, five times increased reaction rate is achieved. Additionally, mineral acids (sulphuric and phosphoric) and antioxidants (diphenylamine, N-isopropyl4-diphenylamine) were used for a thorough study of partial mechanism steps and their rates during oxidation. Experimental results were used for determination of the rate limiting step of the ETHAHQ oxidation. It was the hydrogen elimination from hydroxyl of hydroquinone. Research on Chemical Intermediates Springer Journals

Catalytic oxidation of 2-ethyl-5,6,7,8-tetrahydro-9,10-anthrahydroquinone

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Brill Academic Publishers
Copyright © 2001 by VSP 2001
Chemistry; Inorganic Chemistry; Physical Chemistry
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