反应条件
1: 1) 2-<2-(dicyclohexylphosphino)ethyl>pyridine, bis(1,5-cyclooctadiene)nickel(0), 2) buta-1,3-diene, 3) 6 N Et2O/HCl / 1) THF, 20 deg C, 48 h, 2) THF, 60 deg C, 24 h 2: 1) bis(1,5-cyclooctadiene)nickel(0), pyridine, 2) 2 N H2SO4 / 1) THF, a) -50 deg C, 1 h, b) room temperature, 14 h, 2) -40 deg C to room temperature View Scheme
