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In 120 ml of acetone were dissolved 8.0 g of 3-(2-nitrophenoxy)phenol and 7.5 g of ethyl 2-bromopropionate followed by addition of 7.2 g of potassium carbonate. The mixture was refluxed for 5 hours and, after cooling, the insoluble matter was filtered off. The filtrate was concentrated to give 11.6 g of the title compound as a light brown oil.

1. temperatureThe mixture was refluxed for 5 hours
2. temperatureafter cooling
3. filtrationthe insoluble matter was filtered off
4. concentrationThe filtrate was concentrated