反应详情

To a solution of 3,7-dihydroxynaphthalene-2-carboxylic acid (4.0 g, 19.6 mmol) in MeOH (80 mL) is added thionyl chloride (10 mL, 136 mmol) and it is stirred at RT for 48 h. The solvent is removed and purified to give the title compound.

1. customThe solvent is removed
2. custompurified