sodium in diethyl ether T=50°C; 60 h; other dihalocyclopentenes; other temperatures, metals and solvents; influence of NaBr; scope and limitation of the reaction; Product distributionMechanism;
in tetrahydrofuran 27 h; electrolysis: aluminium anode, stainless steel cathode, NBu4Br as supporting electrolyte, i = 0.1 A, j = 0.4 A dm-2, 7.2 F mol-1;
