反应详情

2-Methoxy-5-nitro benzoic acid (500 mg, 2.5 mmol) was heated to reflux with thionyl chloride (5 ml) for 4 hr. The excess thionyl chloride was evaporated under reduced pressure to yield 2-methoxy-5-nitro-benzoyl chloride (0.55 g, 100%), which was used as such for the next step.

1. customThe excess thionyl chloride was evaporated under reduced pressure