HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Thiosemicarbazide → 5-(2-amino-6H-1,3,4-thiadiazin-5-yl)-3-nitropyrocatechol hydrobromide
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Thiosemicarbazide | HCID 2723789 | — |
| Edukt | 2-Bromo-1-(3,4-dihydroxy-5-nitro-phenyl)-ethanone | HCID 21845596 | — |
| Lösungsmittel | 1-Butanol | HCID 263 | — |
| Produkt | 5-(2-amino-6H-1,3,4-thiadiazin-5-yl)-3-nitropyrocatechol hydrobromide | HCID 135665327 | — |
Reaktionsschritte
A solution of 1.38 g of 2-bromo-3',4'-dihydroxy-5'-nitroacetophenone and 461 mg of thiosemicarbazide in 20 ml of n-butanol is heated to boiling under reflux for 60 minutes. After cooling to room temperature the crystals are filtered under suction and recrystallized from n-butanol. There is obtained 5-(2-amino-6H-1,3,4-thiadiazin-5-yl)-3-nitropyrocatechol hydrobromide of m.p. 265°-267°.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US05389653 |
| Quelldatensatz | uspto-grants-1995_02 |
| ORD ID | ord-2e434c7299e3461bb2b24c3e639093e1 |
| Quellennotiz | uspto-grants-1995_02 |