Triphenylphosphine → (S)-2-Chloro-4-(1-amino)ethylpyridine

Participants

Reaction Conditions

Reaction Steps

Triphenylphosphine (9.56 g) was added to a solution of 4-((S)-1-azidoethyl)-2-chloropyridine (4.44 g) in tetrahydrofuran-water (4:1, 50 mL), and the reaction solution was heated and stirred at 60° C. for two hours. The reaction solution was returned to room temperature, and the solvent was evaporated under reduced pressure. Chloroform and 5 N hydrochloric acid were added to the residue, and the aqueous layer was separated. The aqueous layer was made basic with 5 N sodium hydroxide. Chloroform was added to the reaction solution, and the organic layer was separated. The organic layer was dried over magnesium sulfate, and the solvent was evaporated under reduced pressure to obtain the title compound (2.24 g). The property values of the compound are as follows.

Provenance & Evidence