Triethyl phosphite → Diethyl [(2-tert-butyl-1,3-thiazol-4-yl)methyl]phosphonate
Reaktionsgleichung
[C:1]([C:5]1[S:6][CH:7]=[C:8]([CH2:10]Cl)[N:9]=1)([CH3:4])([CH3:3])[CH3:2].[P:12]([O:19]CC)([O:16][CH2:17][CH3:18])[O:13][CH2:14][CH3:15]>>[C:1]([C:5]1[S:6][CH:7]=[C:8]([CH2:10][P:12](=[O:19])([O:16][CH2:17][CH3:18])[O:13][CH2:14][CH3:15])[N:9]=1)([CH3:4])([CH3:3])[CH3:2]Komponenten
3
Reaktionsbedingungen
- Temperatur
- 160 °C
Versuchsvorschrift
A mixture of 2-tert-butyl-4-chloromethyl-1,3-thiazole (8.66 g) and triethyl phosphite (15.7 g) was stirred at 160° C. for 20 hrs. Excess triethyl phosphite was evaporated under reduced pressure. The residue was subjected to silica gel column chromatography and eluted with ethyl acetate-hexane (1:2 to 1:0, v/v) to give diethyl [(2-tert-butyl-1,3-thiazol-4-yl)methyl]phosphonate as a colorless oil (12.0 g, yield 90%).