HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Methanol → Methyl 3-aminosulfonyl-4-phenoxy-5-(1-pyrrolidinyl)benzoate
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Methanol | HCID 887 | — |
| Edukt | Sulfuric Acid | HCID 1118 | — |
| Edukt | Piretanide | HCID 4849 | — |
| Produkt | Methyl 3-aminosulfonyl-4-phenoxy-5-(1-pyrrolidinyl)benzoate | HCID 11545297 | — |
Reaktionsschritte
36.2 g of 4-phenoxy-3-(1-pyrrolidinyl)-5-sulphamoylbenzoic acid are dissolved in 200 ml of methanol and 7 ml of concentrated H2SO4 and heated for 4 to 6 hours under reflux. Upon cooling, the ester crystallises. Recrystallisation from methanol; M.p. 191° C.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04161531 |
| Quelldatensatz | uspto-grants-1979_07 |
| ORD ID | ord-cf8bb8df8ab94fc1aca130cbae6a5d1f |
| Quellennotiz | uspto-grants-1979_07 |