Triethylamine → HCID 67323709, compound

Participants

Reaction Steps

To an ice-cooled solution of 3-[4-(6-hydroxy-hexyloxy)-phenyl]-acrylic acid hexadecyl ester (2.6 g, 5.3 mmol), triethylamine (0.99 ml, 7.4 mmol) and 4 crystals of BHT in tetrahydrofuran (30 ml) was added dropwise methacryloyl chloride (0.68 g, 6.9 mmol). The reaction mixture was allowed to react for 7.5 hours, warming to room temperature. Potassium hydroxide solution (5 wt %, 50 ml) was added and the solution extracted 3×100 ml ethyl acetate. The combined organic layers were washed with 100 ml portions of 1M HCl, water, brine and then dried with magnesium sulfate and concentrated. The crude product was purified by silica gel chromatography eluting with 10% ethyl acetate in hexane, followed by recrystallization from hexane, to give 0.37 g white solid, 95% pure by HPLC. H1 NMR (CDCl3): 7.65 (d, 1H, J=16 Hz), 7.49 (d, 2H, J=8.7 Hz), 6.90 (d, 2H, J=8.8 Hz), 6.33 (d, 1H, J=15.8 Hz), 6.12 (m, 1H), 5.57 (m, 1H), 4.19 (m, 4H), 4.00 (m, 2H), 1.96 (m, 3H), 1.8-1.4 (m, 8H), 1.28 (s, 32H), 0.90 (vt, 3H).

Provenance & Evidence