Formaldehyde → HCID 86704394, compound

Participants

Reaction Steps

1.6 mL of 37% aqueous formaldehyde solution is added to a suspension of N-benzyl-3-chloropropan-1-amine hydrochloride (7.9 g or 35.9 mmol) in dioxane (60 mL), the resulting mixture is slightly heated until it becomes a solution. The solution is cooled to room temperature, 3.2 mL of diethyl phosphate is added thereto, stirring at room temperature for 30 min, and then stirring at 90-100° C. for 3 h, the reaction is completed. The solvent is removed under reduced pressure, and the residue is purified by column chromatography (eluent: 1-4% MeOH in DCM) to obtain 7.6 g target compound (yield: 63%). The analytical data of the obtained product are as follows: 1HNMR (400 MHz, DMSO-d6): δ=7.30-7.21 (m, 5H), 4.01-3.93 (m, 4H), 3.69 (s, 2H), 3.59 (t, J=6.8 Hz, 2H), 2.83 (d, J=10.0 Hz, 2H), 2.61 (t, J=6.8 Hz, 2H), 1.85-1.82 (m, 2H), 1.2 (t, J=7.2 Hz, 6H).

Provenance & Evidence