GB327130A - Method of preparing 4-sulpho ortho benzoyl benzoic acid derivatives and anthraquinone compounds derivable therefrom - Google Patents
Method of preparing 4-sulpho ortho benzoyl benzoic acid derivatives and anthraquinone compounds derivable therefromInfo
- Publication number
- GB327130A GB327130A GB2740228A GB2740228A GB327130A GB 327130 A GB327130 A GB 327130A GB 2740228 A GB2740228 A GB 2740228A GB 2740228 A GB2740228 A GB 2740228A GB 327130 A GB327130 A GB 327130A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- nitro
- sulpho
- amino
- reduction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
- C07C309/01—Sulfonic acids
- C07C309/28—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
- C07C309/45—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton
- C07C309/52—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton the carbon skeleton being further substituted by doubly-bound oxygen atoms
- C07C309/53—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton the carbon skeleton being further substituted by doubly-bound oxygen atoms the carbon skeleton containing carbon atoms of quinone rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
327,130. Gubelmann, I., Weiland, H. J., and Stallmann, O. Sept. 24, 1928. 4<1>-Sulpho-2-benzoyl-5-nitro (or amino) benzoic acid.-4<1>-Sulpho-2-benzoybenzoic acid, on nitration at a relatively low temperature, yields the corresponding 5-nitro body, which on reduction gives 4<1>-sulpho-2-benzoyl-5-aminobenzoic acid. In an example, iron and acetic acid are used for the reduction. 2-Nitro (or amino) anthraquinone-7-sulphonic acid; 2-nitro (or amino)-7-chloranthraquinone; 2 : 7 - diaminoanthraquinone. - On heating 4<1>- sulpho-2-benzoyl-5-nitro (or amino) benzoic acid, in concentrated sulphuric acid, 2-nitro (or amino) anthraquinone-7-sulphonic acid is produced. 2- Nitro-7-chloranthraquinone is obtained by treating 2-nitroanthraquinone-7-sulphonic acid with alkali chlorate in dilute acid solution, and by reduction of the product 2-amino-7-chloranthraquinone results. For this reduction sodium mono- or di-sulphide, or glucose and caustic alkali may be used. By treating 2-aminoanthraquinone-7- sulphonic acid with ammonia in the presence of oxidizing agents, e.g. arsenic acid or sodium chlorate, at raised temperature, 2 : 7-diaminoanthraquinone is produced. In an example, arsenic acid is used and the oxidation is effected under pressure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2740228A GB327130A (en) | 1928-09-24 | 1928-09-24 | Method of preparing 4-sulpho ortho benzoyl benzoic acid derivatives and anthraquinone compounds derivable therefrom |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2740228A GB327130A (en) | 1928-09-24 | 1928-09-24 | Method of preparing 4-sulpho ortho benzoyl benzoic acid derivatives and anthraquinone compounds derivable therefrom |
Publications (1)
Publication Number | Publication Date |
---|---|
GB327130A true GB327130A (en) | 1930-03-24 |
Family
ID=10258991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2740228A Expired GB327130A (en) | 1928-09-24 | 1928-09-24 | Method of preparing 4-sulpho ortho benzoyl benzoic acid derivatives and anthraquinone compounds derivable therefrom |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB327130A (en) |
-
1928
- 1928-09-24 GB GB2740228A patent/GB327130A/en not_active Expired
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