29 a See Experimental Section for details. to 0" C under a nitrogen atmosphere was added 7.4 mL (26.0 mmol) of Vitride12 (3.5 11 solution of sodium bis (2-methoxyethoxy) aluminum hydride in benzene). The resulting dark solution was stirred at 0" C for 30 min and brought to- 78" C. 2-Butanol (2.3 mL, 26.0 mmol) was cautiously introduced via syringe, followed by a solution of the ene nitrile (1.3 mmol) in dry tetrahydrofuran (5 mL). After 2 h at this ...