Phosphorus sulfide (P2S5) → HCID 21836471, Verbindung
Reaktionsgleichung
[F:1][C:2](=[C:13]([F:15])[F:14])[CH2:3][C:4]([NH:6][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1)=O.P12(SP3(SP(SP(S3)(S1)=S)(=S)S2)=S)=[S:17]>C1COCC1>[F:1][C:2](=[C:13]([F:15])[F:14])[CH2:3][C:4](=[S:17])[NH:6][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A mixture of 3,4,4-trifluoro-N-phenyl-3-butenamide (1.0 g, 4.65 mmol) and phosphorus pentasulfide (2.07 g, 4.65 mmol) in anhyd. THF (100 mL) was heated at reflux under nitrogen for 1 hour. The reaction mixture was cooled to r.t. and filtered. The filtrate was concentrated and the residue was chromatographed over silica gel (dichloromethane/hexanes, 80/20) to give 0.65 g (60%) of the desired compound as a pale yellow solid. m.p. 65°-67° C.