Sulfuric Acid → 4-Acetoxy-4'-acetylbiphenyl

反応式

[OH:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:13]=[CH:12][C:11]([C:14](=[O:16])[CH3:15])=[CH:10][CH:9]=2)=[CH:4][CH:3]=1.S(=O)(=O)(O)O.[C:22](OC(=O)C)(=[O:24])[CH3:23]>>[C:22]([O:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[CH:13]=[CH:12][C:11]([C:14](=[O:16])[CH3:15])=[CH:10][CH:9]=2)=[CH:6][CH:7]=1)(=[O:24])[CH3:23]

参加物

反応物 3

HCID 1118Sulfuric Acid

HCID 7918Acetic Anhydride

HCID 103308064-(4-Acetylphenyl)phenol

生成物 1

HCID 135310454-Acetoxy-4'-acetylbiphenyl収率 97%

実験手順

10.5 g of 4-hydroxy-4'-acetylbiphenyl (C) obtained in Example 1 was heated together with 20 ml of acetic anhydride in the presence of a small amount of concentrated sulfuric acid. Crude crystals thus obtained were recrystallized from carbon tetrachloride to obtain 12.5 g of 4-acetoxy-4'-acetylbiphenyl (1): ##STR51##