Lawesson's reagent → HCID 45088408, Verbindung
Reaktionsgleichung
COC1C=CC(P2(SP(C3C=CC(OC)=CC=3)(=S)S2)=[S:10])=CC=1.[CH3:23][N:24]1[C:28](=O)[CH2:27][CH2:26][C@@H:25]1[CH2:30][C:31]#[N:32]>C1C=CC=CC=1>[CH3:23][N:24]1[C:28](=[S:10])[CH2:27][CH2:26][C@@H:25]1[CH2:30][C:31]#[N:32]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
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%).