Imidazole → HCID 58072157, compound

Participants

Reaction Steps

20.0 g (115 mmol) of tert-butyl 3-hydroxyazetidine-1-carboxylate and 9.43 g (139 mmol) of imidazole were initially charged in 200 ml of anhydrous DMF, and 34.91 g (127 mmol) of tert-butyl(diphenyl)silyl chloride were added at RT. After the reaction mixture had been stirred at RT for 18 h, it was poured into 3.2 liters of water and then extracted three times with approx. 1 liter each time of diethyl ether. The combined organic extracts were washed successively with saturated sodium hydrogencarbonate solution, water and saturated sodium chloride solution. After drying over anhydrous magnesium sulphate, the mixture was filtered and the solvent was removed on a rotary evaporator. The remaining residue was stirred with 100 ml of pentane for a few minutes. Subsequently, the solid was filtered off with suction and dried under high vacuum. 29.18 g (61% of theory) of the title compound were obtained.

Provenance & Evidence