Lawesson's reagent → HCID 45088408, compound

Participants

Reaction Steps

Lawesson's reagent (Tokyo Kasei Kogyo) (2.26 g, 5.6 mmols) was added to a benzene (40 ml) solution of the 2-((2R)-1-methyl-5-oxopyrrolidin-2-yl)ethanenitrile (1.48 g, 10.7 mmols), and the mixture was heated for 2 hours under reflux. The solvent was distilled off under reduced pressure, and then the residue was subjected to silica gel column chromatography (SiO2 80 g, MeOH—CHCl3 5:95 v/v) to obtain 2-((2R)-1-methyl-5-thioxopyrrolidin-2-yl)ethanenitrile (1.36 g, 82.8%).

Provenance & Evidence