反应详情

A mixture of 4-bromo-1-hydroxy-2-naphthoic acid (compound 67, 24.7 g, 92.2 mmol), dimethyl sulfate (21.8 mL, 231 mmol), and K2CO3 (31.9 g, 231 mmol) in acetone (200 mL) was refluxed overnight. The solid was filtered, and the filtrate was condensed to give a solid residue, which was recrystallized from EtOAc/hexanes to afford the title compound (21.4 g, 78%) as a white solid.

1. temperaturewas refluxed overnight
2. filtrationThe solid was filtered
3. customcondensed
4. customto give a solid residue, which
5. customwas recrystallized from EtOAc/hexanes