Sodium Hydroxide → 2-Methoxy-1,3-thiazole-5-carboxylic acid

Participants

Reaction Conditions

Reaction Steps

To a solution of tert-butyl 2-chlorothiazole-5-carboxylate (100 mg, 0.455 mmol) in MeCN (880 μl) and MeOH (880 ul) was added 5.4M NaOMe in MeOH (337 μl, 1.821 mmol) followed by 2M NaOH (881 μl, 1.762 mmol). The reaction mixture was heated to 80° C. overnight and, after cooling to RT, the mixture was evaporated under reduced pressure. The residue was acidified with a minimal volume of 6M aqueous hydrochloric acid. The resulting precipitate was filtered, washed with water and dried in a high vacuum oven overnight to afford the title compound;

Provenance & Evidence