o-Chlorophenylacetic acid → Acetyl chloride, 2-(2-chlorophenyl)-

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Reaction Steps

2-Chlorophenylacetic acid (51 mg, 0.3 mmol) was dissolved in ethyl acetate (1.5 mL), the solution was added with thionyl chloride (26 μL, 0.36 mmol), and the mixture was refluxed by heating for 4 hours. The solvent was evaporated under reduced pressure to give 2-chlorophenylacetyl chloride. By using this compound and 5-(4-aminophenyl)-1H-naphtho[1,2-b][1,4]diazepine-2,4(3H,5H)-dione (190 mg, 0.6 mmol) obtained in Example 1, (3), the title compound (10 mg, yield 11%) was obtained as pale yellow crystals in the same manner as that of Example 1, (4).

Provenance & Evidence