Benzyl chloroformate → HCID 15030958, compound

Participants

Reaction Conditions

Reaction Steps

12 g (66.1 mmol) of rac-methyl norleucinate hydrochloride were initially charged in 974 ml of water/THF (8:1), and 28.3 g (204.8 mmol) of potassium carbonate were added. The reaction mixture was cooled to 0° C. 12.3 ml (72.7 mmol) of benzyl chloroformate were slowly added dropwise and the reaction mixture was stirred at RT overnight. The mixture was diluted with 480 ml of water and extracted three times with dichloromethane. The combined organic phases were dried over sodium sulphate, filtered off and concentrated. The residue was purified by silica gel chromatography (cyclohexane/ethyl acetate=4:1). This gave 18.0 g (97.6% of theory, purity 100%) of the target compound.

Provenance & Evidence