Sodium sulfide monohydrate → HCID 71271685, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of crude methanesulfonic acid 1-(tert-butoxycarbonylamino-methyl)-3-methanesulfonyloxy-propyl ester (1.24 g) in methanol (25 ml) was added sodium sulfide monohydrate (0.84 g). The reaction mixture was stirred at 40° C. for 3 hours. The methanol was partially removed by distillation. Water was added and the mixture was extracted three times with ethyl acetate. The organic phases were combined, dried over anhydrous sodium sulfate and concentrated. The residue was purified over silica gel (ethyl acetate/heptanes, from 1:4 to 1:1) to give thietan-2-ylmethyl-carbamic acid tert-butyl ester (0.15 g).

Provenance & Evidence