Benzenamine, 3-ethynyl- → HCID 90052292, compound

Participants

Reaction Steps

To a solution of 3-ethynylaniline (100 mg) and N-Boc-2-aminoacetaldehyde (407 mg) in ethyl acetate (5 mL) and methylene chloride (5 mL), acetic acid (2 drops) and sodium triacetoxyborohydride (543 mg) were added at room temperature, and the mixture was stirred at the same temperature for 3 hours and 30 minutes. To the reaction mixture, N-Boc-2-aminoacetaldehyde (200 mg) and sodium triacetoxyborohydride (200 mg) were added at room temperature, and the mixture was stirred at the same temperature. To the reaction mixture, saturated aqueous sodium hydrogencarbonate and ethyl acetate were added. The organic layer was separated, and dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by basic silica gel column chromatography (eluent, 75% hexane/25% ethyl acetate) to obtain tert-butyl (2-((3-ethynylphenyl)amino)ethyl)carbamate (G27).

Provenance & Evidence