1: sodium methylate With copper(I) bromide in methanol; N,N-dimethyl-formamide T=20°C; 1 h; 2: 8-Brom-5-acetoxy-7-methoxy-flavon in methanol; N,N-dimethyl-formamide T=120°C; 5 h; 3: With hydrogenchloride in methanol; water; N,N-dimethyl-formamide T=20°C; Cooling;

1: sodium methylate With copper(I) bromide in methanol; N,N-dimethyl-formamide T=20°C; 1 h; 2: 8-Brom-5-acetoxy-7-methoxy-flavon in methanol; N,N-dimethyl-formamide T=120°C; 5 h; 3: With hydrogenchloride in methanol; water; N,N-dimethyl-formamide T=20°C; Cooling;