Water → HCID 68870935, compound

Participants

Reaction Conditions

Reaction Steps

Sodium hydride (60% dispersion in oil, 16.24 g, 406 mmol) was suspended in DMF (800 mL) and solid N-(3-hydroxyphenyl)acetamide (61.0 g, 406 mol) was added portionwise over 1 h (warming and frothing occurs). After the final addition the product from Step 4 (101.2 g, 406 mmol) was added as a solid, portionwise, over 10 min and the resulting mixture was heated to 60° C. overnight. Water (800 mL) was carefully added dropwise to the still warm reaction mixture over 1 h to give a fine yellow precipitate. The mixture was then cooled to 0° C., filtered and the resulting solid was washed with cold H2O and hexane to give the title compound (143.3 g, 97%) as a yellow solid. 1H NMR (400 MHz, DMSO-D6) δ ppm 10.06 (s, 1H), 9.80 (s, 1H), 8.91 (s, 1H), 7.44-7.49 (m, 3H), 7.37 (dd, 2H, 1.26 Hz, 8.6 Hz), 7.29-7.33 (m, 3H), 6.76-6.80 (m, 1H), 6.22 (s, 1H), 2.04 (s, 3H). MS (ES+) m/e 365 [M+H]+.

Provenance & Evidence