反応 #574068

ord-287635de43894b119b5328a7238acd2a

反応方程式

CC(C)(Oc1ccc(N)cc1)C(=O)O
2-(4-aminophenoxy)-2-methylpropionic acid
O=C(Cl)c1cc(Cl)cc(Cl)c1
3,5-dichlorobenzoyl chloride
Cl
HCl
→
CC(C)(Oc1ccc(NC(=O)c2cc(Cl)cc(Cl)c2)cc1)C(=O)O
fine crystals
収率 76.0%
CC(C)(Oc1ccc(NC(=O)c2cc(Cl)cc(Cl)c2)cc1)C(=O)O
2-(4-(3,5-dichlorobenzamido)phenoxy)-2-methylpropionic acid
収率 76.0%

反応物

CC(C)(Oc1ccc(N)cc1)C(=O)O
2-(4-aminophenoxy)-2-methylpropionic acid
O=C(Cl)c1cc(Cl)cc(Cl)c1
3,5-dichlorobenzoyl chloride
Cl
HCl

試薬

なし

溶媒

[Na+].[OH-]
NaOH
[Na+].[OH-]
NaOH

反応条件

詳細条件
See reaction.notes.procedure_details.

後処理

  1. 1
    workup.ADDITIONwas gradually added
  2. 2
    その他strongly alkaline during the reaction
  3. 3
    その他The white precipitate was recrystallized from aqueous isopropanol

実験手順

To a solution of 0.5 g 2-(4-aminophenoxy)-2-methylpropionic acid in 5 ml 2N NaOH, 0.70 ml 3,5-dichlorobenzoyl chloride was dropwise added with stirring 5 ml additional 2N NaOH was gradually added to keep the PH strongly alkaline during the reaction. After 1 hour stirring, the reaction product was acidified with HCl. The white precipitate was recrystallized from aqueous isopropanol to give 1.4 g (76%) of fine crystals MP 206°-207°.

出典

DOI: 10.6084/m9.figshare.5104873.v1特許: US05292935uspto-grants-1994_03