Reaktion #738721

Reaktionsgleichung

Sodium hydride

2-chlorobenzenesulfonic acid 3-hydroxy-5-methylphenyl ester

6-bromohexanenitrile

→

title compound

Ausbeute 74.2%

2-Chlorobenzenesulfonic acid 3-[5-cyanopentyloxy]-5-methylphenyl ester

Ausbeute 74.2%

Lösungsmittel

N,N-dimethylformamide

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigequenched with brine (50 mL)
2. 2
   Extraktionextracted into diethyl ether (50 mL)
3. 3
   Waschenwashed with water (3×10 mL)
4. 4
   Trocknendried (MgSO4)
5. 5
   Einengenconcentrated in vacuo
6. 6
   SonstigeThe residue was purified by flash chromatography (methylene chloride/petroleum ether 4:1 to 100:0)

Vorschrift

Sodium hydride (24 mg, 1 mmol; 100%) was added to solution of 250 mg (0.855 mmol) of 2-chlorobenzenesulfonic acid 3-hydroxy-5-methylphenyl ester, as prepared in step (c) of Example 1, in 2 mL of N,N-dimethylformamide. After 5 min, 130 μL (0.93 mmol) of 6-bromohexanenitrile was added to the reaction mixture. The reaction mixture was stirred for 2 h at ambient temperature, quenched with brine (50 mL), extracted into diethyl ether (50 mL), washed with water (3×10 mL), dried (MgSO4), and concentrated in vacuo. The residue was purified by flash chromatography (methylene chloride/petroleum ether 4:1 to 100:0) to give 250 mg of the title compound as a colorless oil which solidified upon standing.

Quelle