Hydrazine hydrate (1:1) → 4-[2-(2,2,2-Trifluoroethyl)guanidino]-2-(2-aminoethylthio)pyrimidine
Reaktionsgleichung
[F:1][C:2]([F:29])([F:28])[CH2:3][N:4]=[C:5]([NH2:27])[NH:6][C:7]1[CH:12]=[CH:11][N:10]=[C:9]([S:13][CH2:14][CH2:15][N:16]2C(=O)C3=CC=CC=C3C2=O)[N:8]=1.O.NN>C(O)C>[F:29][C:2]([F:1])([F:28])[CH2:3][N:4]=[C:5]([NH2:27])[NH:6][C:7]1[CH:12]=[CH:11][N:10]=[C:9]([S:13][CH2:14][CH2:15][NH2:16])[N:8]=1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A mixture of 4-[2-(2,2,2-trifluoroethyl)-guanidino]-2-(2-phthalimidoethylthio)pyrimidine (0.6 g.) ethanol (20 ml.) and 99% hydrazine hydrate (0.5 ml.) was heated under reflux for 1 hour and then evaporated to dryness. The residue was stirred with N hydrochloric acid and the mixture filtered. The filtrate was basified with 17 N NaOH and the mixture extracted three times with ether. The combined ether extracts were dried and then evaporated to dryness to give 4-[2-(2,2,2-trifluoroethyl)guanidino]-2-(2-aminoethylthio)pyrimidine (0.25 g.) which was used without further purification.