[C:1]([C:5]1[CH:16]=[C:15]([CH3:17])[C:8]([CH2:9][NH:10]C(=O)CCl)=[C:7]([OH:18])[CH:6]=1)([CH3:4])([CH3:3])[CH3:2].Cl>C(O)C>[NH2:10][CH2:9][C:8]1[C:15]([CH3:17])=[CH:16][C:5]([C:1]([CH3:3])([CH3:2])[CH3:4])=[CH:6][C:7]=1[OH:18]To 0.2 g of N-(4-tert-butyl-2-hydroxy-6-methylbenzyl)-2-chloroacetamide from Step A in 10 mL of 95% ethanol was added 1 mL HCl. The resulting mixture was refluxed for 4 h then aged overnight at 50° C. The reaction mixture was concentrated to remove the ethanol and then partitioned between EtOAc and saturated aqueous NaHCO3. The organic layer was dried (Na2SO4), filtered and evaporated to afford the title compound.
Wird geladen…