反应详情

Using an adaptation of the method described in Procedure 5, substituting 7-fluoro-9-oxo-9H-xanthene-3-carboxylic acid methyl ester, 2e for 9-oxo-9H-xanthene-3-carboxylic acid methyl ester, 4a, the title compound 7-fluoro-9-oxo-9H-xanthene-3-carboxylic acid, 3e was obtained. MS m/z (MH+) 258.9.