Diisopropylethylamine → tert-Butyl N-((5-chloro-4-hydroxy-1,1-dimethyl-2-oxo-naphthalen-3-yl)carbonyl)glycinate

Participants

Reaction Conditions

Reaction Steps

Ethyl 5-chloro-4-hydroxy-1,1-dimethyl-2-oxo-naphthalene-3-carboxylate (210 mg, 713 μmol, 1.0 eq) and glycine tert-butyl ester hydrochloride (143 mg, 855 μmol, 1.20 eq) were mixed in dioxane (5 mL) in a round bottom flask. DIPEA (186 μL, 1069 μmol, 1.5 eq) was added via syringe, and the reaction was stirred at 75° C. for 4 hours. The reaction mixture was cooled to room temperature and concentrated in vacuo to give a yellow solid. The crude product was purified by silica flash chromatography (0-50% DCM/hexane) to give the desired compound as a white solid (204 mg). MS m/e=380 (M+H)+.

Provenance & Evidence