Tetrahydrofuran → HCID 15292629, compound

Participants

Reaction Steps

To a solution of 8.50 g of 3β,14β-dihydroxy-5β-pregnane-21-nitrile in 500 ml of dry tetrahydrofuran, 105 ml of 1M i-Bu2AlH in hexane were added dropwise under nitrogen at 0° C. After 1 hr the reaction was quenched with aqueous citric acid (7.05 g in 32.5 ml of water) and stirred at room temperature for 1 hr. The mixture was then filtered through Celite and washed with ethyl acetate. The organic solution was dried over anhydrous sodium sulfate and evaporated to dryness to give 6.05 g of the title compound (II-b) partially in the internal hemiacetal form, as a white foam.

Provenance & Evidence