反应详情

Using an adaptation of the method described in Procedure 15, substituting 2-(2-chlorophenoxy)-terephthalic acid dimethyl ester, 1i for 2-(2-methoxyphenoxy)-terephthalic acid dimethyl ester, 1c, the title compound 5-chloro-9-oxo-9H-xanthene-3-carboxylic acid methyl ester, 2i was obtained. MS m/z (MH+) 289.0.