1: allyl 2-methyl-1-oxo-1,2,3,4-tetrahydronaphthalene-2-carboxylate With (2,2'-bipyridine)nickel(II) dibromide; tetra-n-butylammonium tetrafluoroborate in N,N-dimethyl-formamide Electrolysis; 2: methyl iodide With potassium carbonate in N,N-dimethyl-formamide Further stages.;

1: allyl 2-methyl-1-oxo-1,2,3,4-tetrahydronaphthalene-2-carboxylate With [Ni(2,2'-bipyridine)3(2+)][BF4(1-)]2; tetra-n-butylammonium tetrafluoroborate in N,N-dimethyl-formamide Electrolysis; 2: methyl iodide With potassium carbonate in N,N-dimethyl-formamide Further stages.;