1: With C74H80O10P2; (.pi.-C8H8)2Ni in toluene 2: hydrogen cyanide; 1-cyano-3-butene With zinc(II) chloride in 1,5-diethoxy-3-oxapentane T=-20 - 20°C; 24 h; Product distribution / selectivity;
1: Lewis acid / C70H84O8P2 / tetrahydrofuran / 4 h / 90 °C 2: Lewis acid / bis(1,5-cyclooctadiene)nickel (0); C68H80O6P2 / tetrahydrofuran / 4 h / 90 °C View Scheme