1,3-Propanediamine → HCID 59888430, compound

Participants

Reaction Steps

A solution of 15 (473 mg, 1.11 mmol), 1,3-diaminopropane (1.1 ml, 13.1 mmol) and NaCN (7 mg, 0.14 mmol) in methanol (15 ml) was heated under reflux for 24 hours under an Argon atmosphere. After cooling to room temperature the mixture was poured into water (100 ml) and the aqueous layer was washed with ether (2×125 ml), followed by extraction with dichloromethane (3×75 ml). The combined dichloromethane layers were washed with water (50 ml), brine (50 ml) and dried (Na2SO4). Evaporation of the solvent afforded 16 (418 mg, 81%) as a slightly yellow sticky solid. 1H-NMR (CDCl3) δ1.71 (m, 2H), 2.91 (m, 2H), 3.54 (m, 2H), 3.91 (s, 2H), 3.96 (s, 2H), 5.29 (s, 1H), 7.09 (m, 3H), 7.60 (m, 7H), 8.03 (m, 1H), 8.43 (d, 1H, J=4.4 Hz), 8.52 (d, 2H, 4.8 Hz), 8.85 (s, 1H); 1H-NMR (CDCl3) δ30.41 (t), 39.34 (t), 40.51 (t), 56.79 (t), 57.14 (t), 71.86 (d), 121.81(d), 122.07 (d), 122.35 (d), 122.86 (d), 123.82 (d), 128.36 (s), 135.39 (d), 136.23 (d), 136.29 (d), 147.42 (d), 148.95 (d), 149.18 (d), 159.27 (s), 159.58 (s), 162.58 (s), 165.33(s); MS (CI): m/z 468 (M+1).

Provenance & Evidence