Reaktionsgleichung
[CH3:1][C:2]1[N:3]=[CH:4][NH:5][C:6]=1[CH2:7][S:8][CH2:9][CH2:10][NH2:11].[CH2:12]([N:14]=[C:15]=[S:16])[CH3:13]>C(O)C>[CH2:12]([NH:14][C:15]([NH:11][CH2:10][CH2:9][S:8][CH2:7][C:6]1[NH:5][CH:4]=[N:3][C:2]=1[CH3:1])=[S:16])[CH3:13]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
(i) A solution of 4-methyl-5-[(2-aminoethyl)thiomethyl]-imidazole (6.9 g.) and ethyl isothiocyanate (3.84 g.) in ethanol was heated under reflux for 2 hours. Concentration followed by recrystallisation of the residue from aqueous ethanol gave N-ethyl-N'-[2-((4-methyl-5-imidazolyl)methylthio)ethyl]thiourea (9.0 g.), m.p. 140°-141°. (Found: C, 46.5; H, 7.1; N, 21.7; S, 25.1. C10H18N4S2 requries: C, 46.5; H, 7.0; N, 21.7; S, 24.8).
Aufarbeitung
- temperatureunder reflux for 2 hours
- concentrationConcentration
- customfollowed by recrystallisation of the residue from aqueous ethanol
Quellen und Nachweise
- ORD-Eintrag
- ord-eac2b735f3e4411fbacf8fbf900340f6
- Quelldatensatz
- uspto-grants-1980_09
- Patentnummer
- US04221802
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