反应详情

4-Hydroxy-2-oxo-7-(4-trifluoromethyl-phenyl)-2H-thiochromene-3-carboxylic acid methyl ester was prepared from 7-bromo-4-hydroxy-2-oxo-2H-thiochromene-3-carboxylic acid methyl ester (Example 5e) and 4-trifluoromethylphenylboronic acid under conditions analogous to Example 7(a). MS ESI(−) m/e: 379.05 (M−1).