HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Ammonia → 5-Acetylaminonaphthalene-2-sulfonic acid
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Ammonia | HCID 222 | — |
| Edukt | Sulfuric Acid | HCID 1118 | — |
| Edukt | 6-Amino-2-naphthalenesulfonic acid | HCID 7116 | — |
| Edukt | 2-Naphthol | HCID 8663 | — |
| Edukt | 1-Naphthalenesulfonic acid, 2-hydroxy- | HCID 11278 | — |
| Edukt | Ammonium Bisulfite | HCID 10441651 | — |
| Produkt | 5-Acetylaminonaphthalene-2-sulfonic acid | HCID 235551 | — |
Reaktionsschritte
In a single-vessel process for preparing 2-acetaminophthalene-6-sulfonic acid of high purity by sulfonating 2-hydroxynaphthalene with concentrated sulfuric acid, converting the 2-hydroxynaphthalenesulfonic acid formed thereby with ammonia in the presence of ammonium hydrogensulfite into 2-aminonaphthalene-6-sulfonic acid (Bucherer reaction and N-acetylating the said 2-aminonaphthalene-6-sulfonic acid to give 2 acetaminonaphthalene-6-sulfonic acid, the improvement which comprises:
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04908478 |
| Quelldatensatz | uspto-grants-1990_03 |
| ORD ID | ord-416bc47a863843e3870dabc05524ace4 |
| Quellennotiz | uspto-grants-1990_03 |