Benzaldehyde → HCID 131726740, compound

Participants

Reaction Steps

Sodium cyanoborohydride (10 mg, 0.17 mmol) was added to a solution of 83 (30 mg, 0.11 mmol) and benzaldehyde (12 μl, 0.12 mmol) in MeOH (2 ml). After 1 hour stirring, the reaction mixture was diluted with ether and washed with water. The aqueous was extracted with ether and then combined organic layers were washed with water, and brine, then dried over MgSO4. The crude product was purified via flash SiO2 (eluted with hexane/ethyl acetate (10:1)) to give the protected amine as a white solid. The protected amine was dissolved in 3 N HCl solution in ethylacetate (2 ml) and the reaction mixture was stirred at ambient temperature for 15 hours. The crude reaction mixture was concentrated in vacuo and dried under high vacuum pressure to give 84 as a white solid (25 mg, 61% yield). 1H-NMR (400 MHz, DMSO-d6) δ 8.83 (brd s, 2H), 7.52-7.32 (m, 10H), 7.15 (d, J=7.6 Hz, 1H), 7.02-6.95 (m, 3H), 4.09 (s, 2H), 3.34 (s, 2H), 1.35 (s, 6H).

Provenance & Evidence