反应详情

温度

700 °C

In tetrahydrofuran solvent (500 g), thiophene (1 mole) and maleic anhydride (1 mole) are dissolved, and the solution is introduced into a 2-liter flask. After stirring at 700° C. for 24 hours, the solvent is removed by using a rotary evaporator. The residue is distilled in vacuo to obtain pure 7-thiabicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride of the following Chemical Formula 201 (yield: 90%).

1. additionthe solution is introduced into a 2-liter flask
2. customthe solvent is removed
3. customa rotary evaporator
4. distillationThe residue is distilled in vacuo