Sodium Azide → Tert-butyl trans-4-azido-3-fluoro-piperidine-1-carboxylate

Participants

Reaction Conditions

Reaction Steps

Sodium azide (0.48 g, 0.0073 mol) was added to a solution of tert-butyl (3S,4R)-3-fluoro-4-(tosyloxy)piperidine-1-carboxylate, 4.3-1, Peak-1 (0.7 g, 0.00187 mol) dissolved in DMF (15 mL). The reaction mixture was heated at 100° C. for 4 h. The mixture was cooled and diluted with water and methylene chloride. After separation, the organic layer was dried over Na2SO4, filtered and concentrated in vacuum to provide the desired product, 4.4 (0.4 g). The obtained product was taken for the next reaction without any purification.

Provenance & Evidence