1: cyclohexylMgCl With zinc(II) chloride in tetrahydrofuran T=20°C; 0.333333 h; 2: 3-iodo-4-methoxybenzoic acid methyl ester With Pd0(tris(tert-butyl)phosphine)2 in tetrahydrofuran; 1-methyl-pyrrolidin-2-one T=100°C; 0.666667 h;