2-Amino-4-methylphenol → HCID 4935484, compound

Participants

Reaction Steps

To a stirred solution of 2-amino-4-methyl-phenol (6.15 gm; 50 mmol) in dioxane (100 mL) was added carbonic acid di-tert-butyl ester (9.8 gm; 45 mmol) followed by sodium bicarbonate (12.6 gm; 150 mmol in 75 mL of H2O) After stirring for 8 hours, the reaction was diluted with 100 mL of ethyl acetate and washed with 1N aqueous hydrochloric acid (2×100 mL), saturated aqueous sodium bicarbonate (1×100 mL), and brine (100 mL), then dried (MgSO4), and filtered. The filtered solution was concentrated under reduced pressure to provide the desired (2-Hydroxy-5-methyl-phenyl)-carbamic acid tert-butyl ester as a brown solid (95% yield).

Provenance & Evidence