Triethylamine → N-(2-Fluoroethyl)-N′-[3-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]urea

Participants

Reaction Conditions

Reaction Steps

To a stirring solution of phenyl (3-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)carbamate (intermediate 30) (1.6 g, 4.48 mmol) in dry DMF was added triethylamine (2.03 mL, 14.55 mmol) and 2-fluoroethanamine hydrochloride (2.23 g, 22.40 mmol). The mixture was stirred at 50° C. for 2 h. The solvent was then removed in vacuo affording the title compound which was used without further purification.

Provenance & Evidence