4-(4,6-Dichloropyrimidin-2-yl)morpholine → 4-(6-Chloropyrimidin-4-yl)morpholine
Reaktionsgleichung
[Cl:1][C:2]1C=C(Cl)[N:5]=[C:4](N2CCOCC2)[N:3]=1.[NH:15]1[CH2:20][CH2:19]S(=O)(=O)[CH2:17][CH2:16]1.[CH3:23][CH2:24][OH:25].C1COCC1>>[Cl:1][C:2]1[N:3]=[CH:4][N:5]=[C:16]([N:15]2[CH2:23][CH2:24][O:25][CH2:19][CH2:20]2)[CH:17]=1Komponenten
4
Reaktionsbedingungen
- Temperatur
- 100 °C
Versuchsvorschrift
To a solution of 4-(4,6-dichloropyrimidin-2-yl)morpholine (1.0 equiv.) in EtOH:THF (1:1, 0.25 M) was added thiomorpholine 1,1-dioxide (1.0 equiv.) in one portion. The resulting mixture was heated to 100° C. for 42 h. The resulting mixture was then cooled to RT and concentrated in vacuo to yield an off white solid in The reaction mixture was then concentrated in vacuo and dried under high vacuum over 20 h to yield 4-(6-chloropyrimidin-4-yl)morpholine as a white solid in 97% yield. LCMS (m/z) (M+H)=333.0/334.9, Rt=0.68 min.