Reaktion #2262

Reaktionsgleichung

dimethyl succinate

Sodium

ethanol

methyl 3-chlorobenzoate

dimethyl succinate

→

3-(3-chlorobenzoyl)propionic acid

Lösungsmittel

ether

Reaktionsbedingungen

Aufarbeitung

1. 1
   workup.STIRRINGthe mixture was stirred for 5 minutes at room temperature
2. 2
   EinengenThe mixture was slowly concentrated on a rotary evaporator
3. 3
   Sonstigeto yield a greenish paste which
4. 4
   SonstigeThe reaction was evaporated to a paste
5. 5
   Sonstigequenched with water
6. 6
   Extraktionextracted with ether
7. 7
   WaschenThe ether extracts were washed with water and brine
8. 8
   Sonstigedried
9. 9
   Sonstigeevaporated in vacuo

Vorschrift

Sodium (11 g, spheres) was added to 200 ml ethanol with stirring. When the gas evolution ceased, methyl 3-chlorobenzoate (10 g, 0.057 mole) and dimethyl succinate (9.0 g, 0.615 mole) were added rapidly and the mixture was stirred for 5 minutes at room temperature. The mixture was slowly concentrated on a rotary evaporator to yield a greenish paste which was slurried in 100 ml ether and an additional 2 ml of dimethyl succinate was added. The reaction was evaporated to a paste, quenched with water and extracted with ether. The ether extracts were washed with water and brine, dried and evaporated in vacuo.

Quelle