sodium hydride 1.) THF, 25 deg C, 2 h, 2.) THF, a.) 25 deg C, 1.5 h, b.) 65 deg C, 8 h; Yield given. Multistep reaction;

LiN(Cy)2 1.) THF, -78 deg C, 15 min, 2.) THF, from -78 deg C to 25 deg C, 4.5 h; Yield given. Multistep reaction;