Acetic Anhydride → HCID 86733561, compound

Reaction equation

[Na:1].[OH:2][C:3]1[CH:8]=[CH:7][C:6]([C:9]([C:21]2[CH:26]=[CH:25][C:24]([O:27][S:28]([OH:31])(=[O:30])=[O:29])=[CH:23][CH:22]=2)([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][N:16]=2)[C:10]([O:12][CH2:13][CH3:14])=[O:11])=[CH:5][CH:4]=1.[C:32](OC(=O)C)(=[O:34])[CH3:33].C([O-])(=O)C.[Na+]>>[Na:1].[C:32]([O:2][C:3]1[CH:4]=[CH:5][C:6]([C:9]([C:21]2[CH:26]=[CH:25][C:24]([O:27][S:28]([OH:31])(=[O:30])=[O:29])=[CH:23][CH:22]=2)([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][N:16]=2)[C:10]([O:12][CH2:13][CH3:14])=[O:11])=[CH:7][CH:8]=1)(=[O:34])[CH3:33]

Participants

Reactant 3

HCID 7918Acetic Anhydride

HCID 517045Sodium Acetate

HCID 86733562HCID 86733562, compound

Product 1

HCID 86733561HCID 86733561, compound

Procedure

15 g. of the above-described ethyl α-(4-hydroxyphenyl)-α-(4-sulphoxyphenyl)-2-pyridine-acetate sodium salt were treated with 75 ml. acetic anhydride and 15 g. anhydrous sodium acetate for 18 hours at ambient temperature and then heated and stirred for 1 hour. The reaction mixture was filtered and the solution treated with excess diethyl ether to give an abundant precipitate. The product was filtered off and purified with ethanol-ether to give the desired ethyl α-(4-acetoxyphenyl)α-(4-sulphoxyphenyl)-2-pyridine-acetate sodium salt in the form of colourless crystals.