Lawesson's reagent → HCID 23366702, Verbindung
Reaktionsgleichung
[S:1]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[CH2:5][NH:4][C:3](=O)[CH2:2]1.COC1C=CC(P2(SP(C3C=CC(OC)=CC=3)(=S)S2)=[S:22])=CC=1>C1(C)C=CC=CC=1>[S:1]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[CH2:5][NH:4][C:3](=[S:22])[CH2:2]1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 100 °C
Versuchsvorschrift
A stirred mixture of 4,5-dihydro-1,4-benzothiazepin-3(2H)-one (1.79 g, prepared as example 1 of international patent application WO 92/21668) and Lawesson's reagent (2.22 g) in dry toluene (100 ml) was heated at 100° C. for three hours. The mixture was allowed to cool to room temperature. The precipitated solid was collected by filtration, washed with toluene and dried to give 4,5-dihydro-1,4-benzothiazepin-3(2H)-thione. Yield 1.78 g (m.p. 215°-219° C.).