Methylparaben → HCID 12361498, compound

Participants

Reaction Steps

A mixture of 4-hydroxybenzoic acid, methyl ester (17.0 mL, 66 mmol) (commercially available from Sigma-Aldrich, St. Louis, Mo., USA), 1-bromo-3-methylbut-2-ene (12.0 g, 79 mmol) (commercially available from Sigma-Aldrich, St. Louis, Mo., USA) and potassium carbonate (23.0 g, 164 mmol) in DMSO (25 mL) was stirred at room temperature for 24 hours. EtOAc (150 mL) was added, and the mixture was washed with water (25×3 mL) and brine (25×2 mL) and dried over MgSO4. The solvent was removed, and the product was purified by CombiFlash® silica gel column chromatography, eluent with hexane/EtOAc, 90/10 to give T45.1 (12.0 g, yield 83%). 1H NMR (500 MHz, CDCl3) δ ppm 7.99 (2H, d, J=8.8 Hz), 6.92 (2H, d, J=8.8 Hz), 5.42-5.58 (1H, m), 4.57 (2H, d, J=6.8 Hz), 3.89 (3H, s), 1.81 (3H, s), 1.76 (3H, s).

Provenance & Evidence