in tetrahydrofuran T=-78°C; 1 h;

1: carbon dioxide; AlMe2(OMe); 2-(furan-2-yl)-pyridine With [(η2-cyclooctene)4Rh2(μ-Cl)2]; tri-cyclo-hexyl-phosphine in methanol; N,N-dimethyl acetamide T=70°C; P=760.051 Torr; 8 h; Inert atmosphere; 2: diazomethyl-trimethyl-silane in methanol; diethyl ether T=0°C; 1 h; Inert atmosphere; regioselective reaction;

[(η2-cyclooctene)4Rh2(μ-Cl)2]; tri-cyclo-hexyl-phosphine in methanol; N,N-dimethyl acetamide T=70°C; P=760.051 Torr; 8 h; Inert atmosphere; regioselective reaction;