Catechol → o-Benzoquinone trimethyl-hexamethylene-diamine

Beteiligte Stoffe

Reaktionsschritte

About 37.93 g (0.24 mol) trimethyl-hexamethylene-diamine and about 0.6 g (0.0024 mol) copper sulfate pentahydrate were dissolved in about 400 mL of methanol. About 26.4 g (0.24 mol) of catechol (chemical name 1,2-dihydroxybenzene) acting as both the quinone precursor and catalyst was added to the reactant mixture. A gentle stream of oxygen at a flow rate of about 50 cc/min was then passed through the reaction mixture for about three hours, while maintaining the reaction temperature around 20°-25 ° C. At the end of three hours the oxygen supply was cut off and the reaction mixture was concentrated under vacuum using a rotary evaporator. The o-benzoquinone-trimethyl-hexamethylene-diamine polymer was precipitated in excess water, washed extensively and dried under vacuum for about 6 hours at a temperature of about 30° C.

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