Hydrogen Bromide → (4-Piperidinyl)(2-thienyl)methanone hydrobromide
Reaktionsgleichung
[S:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]([CH:8]1[CH2:13][CH2:12][N:11](C(OCC)=O)[CH2:10][CH2:9]1)=[O:7].[BrH:19]>O>[BrH:19].[NH:11]1[CH2:12][CH2:13][CH:8]([C:6]([C:2]2[S:1][CH:5]=[CH:4][CH:3]=2)=[O:7])[CH2:9][CH2:10]1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A mixture of 20 parts of ethyl 4-(2-thienylcarbonyl)-1-piperidine-carboxylate and 120 parts of hydrobromic acid solution 48% in water is stirred and refluxed for 2 hours. The reaction mixture is cooled and the precipitated product is filtered off. It is washed with 2-propanol and dried, yielding 17 parts (85%) of (4-piperidinyl)(2-thienyl)methanone hydrobromide.
Aufarbeitung
- temperaturerefluxed for 2 hours
- temperatureThe reaction mixture is cooled
- filtrationthe precipitated product is filtered off
- washIt is washed with 2-propanol
- customdried
Quellen und Nachweise
- ORD-Eintrag
- ord-b06236ed105644d48c846a5f566dbdd9
- Quelldatensatz
- uspto-grants-1985_06
- Patentnummer
- US04522945
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