1: N-methoxycarbonyl-2-trimethylsilylpyrrolidine With trifluorormethanesulfonic acid; tetra-n-butylammonium tetrafluoroborate in dichloromethane
T=-78°C; Electrolysis;
2: 3-iodoprop-1-ene With 1,1,1,2,2,2-hexabutyl-distannane in dichloromethane
T=-20°C; 1 h;