1-(4-chloro-1-hydroxynaphthalen-2-yl)ethanone

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of 1-(1-hydroxy-2-naphthyl)ethanone (5.00 g, 26.8 mmol, from Aldrich) in acetic acid (100 mL) was added N-chlorosuccinimide (3.94 g, 29.5 mmol) and the resulting mixture heated at 100° C. for 18 hours. After allowing to be cooled to ambient temperature, the reaction mixture was concentrated in vacuo and then diluted with ethyl acetate. The precipitated solid was collected by filtration to afford the desired product (3.98 g, 67%). LCMS calculated for C12H10ClO2 (M+H)+: m/z=221.0; Found: 221.1. to be cooled to ambient temperature the reaction mixture was concentrated in vacuo diluted with ethyl acetate The precipitated solid was collected by filtration