Reaktion #700546

Reaktionsgleichung

4-hydroxyphenylglycine

EtOH

HCl

→

title compound

Ausbeute 70.0%

Ethyl 4-hydroxyphenylglycine, hydrochloride

Ausbeute 70.0%

Reaktionsbedingungen

Aufarbeitung

1. 1
   TemperaturThe mixture was heated
2. 2
   Temperaturat reflux for 14 h
3. 3
   Temperaturto cool
4. 4
   Einengenwas concentrated under reduced pressure
5. 5
   SonstigeThe residue was partitioned between saturated aqueous NaHCO3 and EtOAc
6. 6
   Extraktionthe organic extract
7. 7
   Einengenwas concentrated in vacuo

Vorschrift

To a suspension of 4-hydroxyphenylglycine (18.00 g, 0.11 mol) in EtOH (100 mL) was added 20% ethanolic HCl (30 mL). The mixture was heated at reflux for 14 h, then was allowed to cool and was concentrated under reduced pressure. The residue was partitioned between saturated aqueous NaHCO3 and EtOAc, and the organic extract was concentrated in vacuo to afford the title compound (15.00 g, 70%).

Quelle