1: 1.) n-butyllithium / 1.) THF, ethyl ether, hexane, -95 deg C, 60 min; 2.) thf, hexane, ethyl ether, -95 deg C, 15 min 2: i-Bu2AlH / hexane View Scheme

alkaline H2O2 in methanol T=30°C; Rate constant;

diisobutylaluminium hydride in hexane T=25°C; 0.5 h;