1: 3-Fluorophenylmagnesium bromide With zinc dibromide in tetrahydrofuran T=20°C; 2: 5-methyl-1-cyclopenten-1-yl triflate; carbon monoxide With zinc dibromide; nickel dichloride in tetrahydrofuran; dimethyl sulfoxide T=50°C; Negishi coupling; P=760.051 Torr; 0.333333 h; Further stages.;

1: n-hexyl lithium With zinc(II) chloride in tetrahydrofuran T=20°C; 2: 5-methyl-1-cyclopenten-1-yl triflate; carbon monoxide With zinc dibromide; nickel dichloride in tetrahydrofuran; dimethyl sulfoxide T=80°C; Negishi coupling; P=760.051 Torr; 0.2 h; Further stages.;