Hydrochloric Acid → HCID 57126089, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of (2S,4R)-1-t-butoxycarbonyl-2-phthalimidomethyl-4-methanesulfonyloxypyrrolidine (3 g) in dimethylformamide (30 ml), potassium thioacetate (1.65 g) is added. The mixture is stirred at 60° C. for 3.5 hours. The reaction mixture is poured into a mixture of ethyl acetate and dilute hydrochloric acid. The organic layer is taken, washed with water, dried over sodium sulfate, and concentrated in vacuo. The residue is purified by silica gel column chromatography to give (2S,4S)-1-t-butoxycarbonyl-2-phthalimidomethyl-4-acetylthiopyrrolidine (2.12 g). Yield: 74%. Orange colored syrup. NMR δ(CDCl3) ppm: 1.30, 1.39(2×s, 9H), 1.6 to 2.0(m, 1H), 2.34(s, 3H), 2.4 to 2.67(m, 1H), 3.15 to 3.3(m, 1H), 3.65 to 4.55(m, 5H), 7.6 to to 8.0(m, 4H). IR ν (CHCl3) cm-1 : 1774, 1715, 1688.

Provenance & Evidence