Reaktion #11742

Reaktionsgleichung

o-toluenesulfonylisocyanate

2-(4-chloro-2-hydroxymethyl-phenoxy)-1-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-ethanone

triethylamine

→

(2-Methylbenzenesulfonyl)-carbamic acid 5-chloro-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-benzyl ester

Lösungsmittel

toluene

Reaktionsbedingungen

Aufarbeitung

1. 1
   TemperaturAfter cooling the reaction
2. 2
   Sonstigewas evaporated to dryness
3. 3
   Sonstigethe title compound purified by silica gel chromatography (0.074 g, LRMS: 618.1)

Vorschrift

To a solution of 2-(4-chloro-2-hydroxymethyl-phenoxy)-1-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-ethanone (0.050 g, 0.12 mmol) in dry toluene (2 mL) was added triethylamine (0.05 mL, 0.36 mmol) followed by o-toluenesulfonylisocyanate (0.05 mL, 0.36 mmol) and catalytic 4-dimethylaminopyridine. After 23 hours the reaction was warmed to 55° C. for 2 hours. After cooling the reaction was evaporated to dryness and the title compound purified by silica gel chromatography (0.074 g, LRMS: 618.1).

Quelle