Reaktion #2358534

Reaktionsgleichung

HCl

3-(5-Dimethylcarbamoyl-pent-ynyl)benzoic acid ethyl ester

sodium hydroxide

→

3-(5-dimethylcarbamoyl-pent-1-ynyl)-benzoic acid

Ausbeute 74.0%

3-(5-Dimethylcarbamoyl-pent-1-ynyl)-benzoic acid

Ausbeute 74.0%

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigethe solvent was removed under vacuum
2. 2
   SonstigeThe residue was triturated with ethyl acetate

Vorschrift

3-(5-Dimethylcarbamoyl-pent-ynyl)benzoic acid ethyl ester (0.800 g, 2.78 mmol) was treated with sodium hydroxide 1M solution (6 mL) overnight. To the reaction mixture 7 mL of HCl 1M solution was added and the solvent was removed under vacuum. The residue was triturated with ethyl acetate, to give 3-(5-dimethylcarbamoyl-pent-1-ynyl)-benzoic acid (24) (0.590 g, 2.05 mmol; yield 74%) as white off powder.

Quelle