Reaktion #8699

Reaktionsgleichung

NaH

ethylene glycol

NaH

2-phenyl-ethanesulfonic acid [6-chloro-5-(2-methoxy-phenoxy)-2-pyridin-4-yl-pyrimidin-4-yl]-amide

→

2-phenyl-ethanesulfonic acid [6-(2-hydroxy-ethoxy)-5-(2-methoxy-phenoxy)-2-pyridin-4-yl-pyrimidin-4-yl]-amide

Lösungsmittel

EA

DME

Reaktionsbedingungen

Aufarbeitung

1. 1
   workup.STIRRINGstirring
2. 2
   workup.WAITwas continued at 90° C. for 4 d
3. 3
   Waschenwashed once with 10% aq. citric acid and 3 times with water
4. 4
   SonstigeThe organic phase was evaporated
5. 5
   SonstigeThe solid material was collected
6. 6
   Waschenwashed with diethyl ether
7. 7
   Sonstigedried

Vorschrift

To a suspension of NaH (644 mg, 60% in mineral oil) in DME (15 ml) was added ethylene glycol (15 ml). After evolution of gas had ceased, 2-phenyl-ethanesulfonic acid [6-chloro-5-(2-methoxy-phenoxy)-2-pyridin-4-yl-pyrimidin-4-yl]-amide (800 mg) was added and the resulting solution was stirred at 90° C. for 16 h. A further portion of NaH (322 mg) was added and stirring was continued at 90° C. for 4 d. The mixture was diluted with EA (200 ml) and washed once with 10% aq. citric acid and 3 times with water. The organic phase was evaporated and the residue was suspended in diethyl ether. The solid material was collected, washed with diethyl ether and dried to give 2-phenyl-ethanesulfonic acid [6-(2-hydroxy-ethoxy)-5-(2-methoxy-phenoxy)-2-pyridin-4-yl-pyrimidin-4-yl]-amide (513 mg) as a beige solid. LC-MS: tR=4.05 min, [M+1]+=523.10, [M−1]−=521.24.

Quelle