Sodium borohydride → HCID 58226759, compound

Participants

Reaction Steps

Dissolved the product from Example 39A (3.64 g, 10.05 mmol) in ethanol (67 mL) and added sodium borohydride (0.837 g, 22.11 mmol) portionwise. After stirring for 1 h at room temperature, the mixture was filtered through celite and washed with methanol and ethyl acetate and the filtrate concentrated to a solid. The solid was dissolved in ethyl acetate (200 mL) and extracted with 1N aq. HCl (200 mL), then brine and the organic layer dried and concentrated to a colorless oil (3.68 g, 100%) that was used directly in the next reaction.

Provenance & Evidence