Hydroquinone → HCID 131734266, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 9.95 g of glycidyl methacrylate, 4.40 g of hydroquinone, 0.050 g of HEPTCR 050 NPG (chromium heptanoate in polypropylene glycol) and 50 ml of o-xylene is initially charged in a 250 ml four-neck flask with a sabre stirrer (stirrer sleeve, stirrer motor), a thermometer, an inlet tube for compressed air, a reflux condenser and an oil bath with temperature regulation. The reaction mixture was heated to boiling with introduction of air. This was followed by refluxing at a reaction temperature (=internal flask temperature) of 142° C. for 10 h. After cooling to room temperature, the volatile constituents were removed in a rotary evaporator (bath temperature 55° C., vacuum 20 mbara). After filtration, a brown, cloudy liquid was obtained. The synthesis product was purified by means of column and thin-layer chromatography. The stationary phase used for column chromatography was silica gel 60 (0.063-0.200 mm); the eluent consisted of an ethyl acetate/cyclohexane mixture in a ratio of 1/1. The clear and colourless solutions obtained were combined to give three fractions. The eluent was subsequently removed on a rotary evaporator.

Provenance & Evidence