tetrakis(triphenylphosphine) palladium(0) in N,N,N',N',N'',N''-hexamethylphosphoric triamide T=100°C; P=15200 Torr;

Cu(1,1,1,5,5,5-hexafluoroacetylacetonate)2 in o-di-fluorobenzene Heating;

1: succinic acid anhydride; naphthalene With AlCl3, aluminium chloride in dichloromethane T=20°C; Friedel-Crafts Acylation; 24 h; Inert atmosphere; 2: ethanol With hydrogenchloride in water T=40°C; 72 h;

sulfuric acid