Pyridine → HCID 18659963, compound

Participants

Reaction Steps

Pyridine (110 μl, 1.36 mmol) was added to a solution of 3-(6-[3-pyrrolidino-1-{4-tolyl}-prop-1E-enyl]-pyridin-2-yl)-prop-2E-en-1-ol (227 mg, 0.68 mmol) in DCM (3 ml) under an inert atmosphere. Acetyl chloride (72 μl, 1.02 mmol) was added and the reaction stirred for 18 hours at room temperature. The reaction mixture was partitioned between DCM and brine. The organic layer was separated, dried over sodium sulphate, filtered and concentrated under vacuum to leave a brown oil. The product was purified by column chromatography on silica gel eluting with 5% methanol/DCM. Product containing fractions were combined and solvent removed to yield 3-(6-[3-pyrrolidino-1-{4-tolyl}-prop-1E-enyl]-pyridin-2-yl)-prop-2E-en-1-yl acetate as a brown gum (184 mg, 73%). 1H-NMR; δ (CDCl3), 7.49 (1H, t, J=7.8 Hz), 7.24 (2H, d, J=7.9 Hz), 7.18-7.11 (2H, m), 7.06 (2H, d, J=7.9 Hz), 6.91-6.66 (3H, m), 4.79 (2H, dd, J=5.4, 0.7 Hz), 3.72 (2H, m), 3.20 (4H, bm), 2.40 (3H, s), 2.12 (3H, s) and 2.11-2.02 (4H, m).

Provenance & Evidence