Acetic Anhydride → HCID 18175004, compound

Participants

Reaction Steps

9 mmol of the compound obtained in Step B are dissolved in acetic anhydride (100 ml) and then a small spatula of sodium acetate is added. The mixture is introduced into an autoclave, Raney nickel is added and autoclaving under a pressure of 40 bars is carried out for 6 hours, with stirring at 50–60° C. The mixture is filtered and is rinsed with alcohol at 95° C.; the solvent is then evaporated off. Hydrolysis is carried out using 100 ml of distilled water and extraction with 3 volumes of dichloromethane is carried out. The organic phase is washed with 2 volumes of water, dried over magnesium sulphate, filtered and evaporated. Rinsing with an ether/dichloromethane mixture and trituration in ether are carried out. The light-beige solid obtained is recrystallised.

Provenance & Evidence