Thionyl Chloride → 3-Benzoyloxy-4-methoxybenzoylchloride

Beteiligte Stoffe

Reaktionsschritte

A solution of 3-benzoyloxy-4-methoxybenzoic acid (29.3 g; that is prepared as described in Reference Example 9) in toluene (300 mL) is treated with thionyl chloride (30 mL) and heated on the steam bath for 6 hours. It is then cooled, filtered and concentrated, to give 3-benzoyloxy-4-methoxybenzoyl chloride (28.7 g), m.p. 120°-122° C.

Herkunft & Nachweise