Sodium Hydroxide → (E)-4-(pyrrolidin-1-yl)but-2-en-1-ol

Participants

Reaction Conditions

Reaction Steps

A solution of 4-(pyrrolidin-1-yl)but-2-yn-1-ol (4.3 g, 31 mmol) in THF (20 ml) was added dropwise to a suspension of lithium aluminium hydride (2.35 g, 62 mmol) in anhydrous THF (8 ml) and the mixture stirred and heated at 60° C. for 2 hours. The mixture was cooled to 5° C. and 2M aqueous sodium hydroxide solution (28 ml) was added dropwise. The resulting suspension was filtered and the volatiles removed from the filtrate by evaporation. The residue was dissolved in a mixture of methylene chloride/ethyl acetate, dried (MgSO4) and the solvent removed by evaporation. The residue was purified by column chromatography on aluminum oxide eluting with methylene chloride/methanol (97/3) to give (E)-4-(pyrrolidin-1-yl)but-2-en-1-ol (3.09 g, 70%).

Provenance & Evidence