反应详情

Using the procedure in Example 85, step (a), 400 mg (1.90 mmol) of 3-acetyloxy-4-methoxybenzoic acid (as prepared in the previous step) was treated with 663 μL (7.60 mmol) of oxalyl chloride and 25 μL of anhyd DMF for 2 h to afford, after workup, the title compound as a beige crystalline solid which was used in the following step without further purification.

1. customas prepared in the previous step)
2. customto afford
3. customafter workup, the title compound as a beige crystalline solid which was used in the following step without further purification