反应详情

Preparation according to Preparation 16 using 4-bromo-2-chlorophenol (6 g, 29 mmol) and acetic anhydride (13.4 g, 130 mmol) in pyridine (10.5 ml, 130 mmol). Yield 7.4 g. MS m/z (rel. intensity, 70 eV) 210 (25), 208 (bp), 206 (79), 63 (21), 62 (9), 250 (M+, 8).

1. customPreparation