反应详情

The title compound (26.6 g, 110%) was prepared from methyl 4-hydroxybenzoate (15.2 g, 125 mmol) utilising sodium hydride as base, in a similar manner to Intermediate 76. 1H NMR (CDCl3) δ 8.00 (2H, d, J 8.9 Hz), 7.82-7.73 (5H, br m), 6.99 (2H, d, J 8.9 Hz), 5.12 (2H, s) and 3.89 (3H, s). MS (ES) m/e 243 [M+H]+.