Formaldehyde → HCID 21925543, compound

Participants

Reaction Steps

Formaldehyde (18 μl, 37 wt. % solution in water, 0.22 mmol) and sodium triacetoxyborohydride (47 mg, 0.22 mmol) were added to a solution of the amine from example 56 (100 mg, 0.22 mmol) in dichloromethane (5 ml), and the reaction mixture was stirred at room temperature for 30 minutes. Saturated aqueous sodium bicarbonate solution (10 ml) was added, the mixture was stirred vigorously for 10 minutes, and the layers were separated. The organic layer was evaporated under reduced pressure and the residue purified by column chromatography on silica gel using dichloromethane:methanol: 0.88 ammonia (95:5:0.5) as eluant. The product was azeotroped with ether to afford the title compound (60 mg).

Provenance & Evidence