Sodium Hydroxide → HCID 67005012, Verbindung

Reaktionsgleichung

[CH3:1][S:2][CH:3]([O:11][C:12]1[CH:17]=[C:16]([Cl:18])[CH:15]=[C:14]([Cl:19])[CH:13]=1)[C:4]([O:6]C(C)(C)C)=[O:5].[OH-].[Na+]>CO.O>[CH3:1][S:2][CH:3]([O:11][C:12]1[CH:13]=[C:14]([Cl:19])[CH:15]=[C:16]([Cl:18])[CH:17]=1)[C:4]([OH:6])=[O:5]

Komponenten

Versuchsvorschrift

To the product of Step 1 (0.2 g) in methanol (3 ml) at ambient temperature was added a solution of sodium hydroxide (0.050 g) in water (1 ml). The reaction was stirred for 2 hours, the solvent evaporated then water and ethyl acetate were added. The aqueous phase was separated, acidified with dilute aqueous hydrochloric acid then extracted with ethyl acetate. The organic phases were combined, dried over magnesium sulphate, filtered and evaporated to give 2-methylthio-2-(3,5-dichlorophenoxy)acetic acid as a pale yellow gum (0.153 g) that was used in the next step without further purification.