反应详情

温度

200 °C

After adding 5-[(2,2-dimethyl-4,6-dioxo-[1.3]dioxan-5-ylidenemethyl) amino]furan-2-carboxylic acid methyl ester (4.0 g) to Dowtherm A (30 ml), the mixture was heated and stirred at 200° C. for 1 hour. After cooling, the precipitated crystals were filtered out and washed with diethyl ether to obtain the title compound (2.0 g).

1. temperaturethe mixture was heated
2. temperatureAfter cooling
3. filtrationthe precipitated crystals were filtered out
4. washwashed with diethyl ether