反応式
S([C:5]1[CH:13]=[CH:12][CH:11]=[C:7]([C:8]([OH:10])=[O:9])[C:6]=1C(O)=O)(O)(=O)=O.S(C1C=C(C(O)=O)C(=CC=1)C(O)=O)(O)(=O)=[O:18]>>[OH:18][C:5]1[CH:6]=[C:7]([CH:11]=[CH:12][CH:13]=1)[C:8]([OH:10])=[O:9]参加物
3
実験手順
Within the framework of the process according to the invention, sulphophthalic acid are 3-sulphophthalic acid and 4-sulphophthalic acid. They can be reacted according to the invention either on their own or as a mixture, to give 3-hydroxybenzoic acid. Preferably, a mixture of the two isomeric sulphophthalic acids such as is obtained from the sulphonation of phthalic anhydride with oleum is used for the process according to the invention. The mixture obtained from the said sulphonation is a mixture of 3-sulphophthalic acid and 4-sulphophthalic acid in a ratio of 1:4 to 1:6.
後処理
- customThey can be reacted
出典と根拠
- ORDレコード
- ord-a2148eee11134888a3acb19133740863
- 出典データセット
- uspto-grants-1982_10
- 特許番号
- US04354038
関連ノート
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