lithium aluminium tetrahydride; sulfuric acid 1.) ether, 0 deg C, 2.) ether, water, 0 deg C, 30 min; Yield given. Multistep reaction;

1: 1.) (i-Pr)2NH, BuLi / 1.) THF, hexane, -78 deg C, 45 min, 2.) THF, hexane, -78 deg C to room temperature 2: 1.) LDA, 2.) HMPA / 1.) THF, hexane, -78 deg C, 45 min, 2.) THF, hexane, room temperature, 30 min 3: 1.) LiAlH4, 2.) 25percent H2SO4 / 1.) ether, 0 deg C, 2.) ether, water, 0 deg C, 30 min View Scheme

1: 1.) LDA, 2.) HMPA / 1.) THF, hexane, -78 deg C, 45 min, 2.) THF, hexane, room temperature, 30 min 2: 1.) LiAlH4, 2.) 25percent H2SO4 / 1.) ether, 0 deg C, 2.) ether, water, 0 deg C, 30 min View Scheme

(i) pyrrolidine, (ii) /BRN= 506021/, (iii) aq. AcOH; Multistep reaction;