diethylaluminium chloride in dichloromethane T=0°C; Acylation; 3.5 h;

1: N-benzyl-N,N,N-triethylammonium chloride; sodium hydroxide / dichloromethane / 1 h / 20 °C 2: AlCl3, aluminium chloride / dichloromethane / 2 h / 20 °C 3: potassium tert-butylate / tetrahydrofuran / Inert atmosphere; Reflux View Scheme

1: AlCl3, aluminium chloride / dichloromethane / 2 h / 20 °C 2: potassium tert-butylate / tetrahydrofuran / Inert atmosphere; Reflux View Scheme