HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
1-Benzofuran-2-carbohydrazide → Benzofuran-2-carboxylic acid (1-amino-2-benzenesulfonyl-ethylidene)-hydrazide
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | 1-Benzofuran-2-carbohydrazide | HCID 468646 | — |
| Edukt | 2-(Phenylsulfonyl)-ethanimidic acid ethyl ester | HCID 70089442 | — |
| Lösungsmittel | Chloroform | HCID 6212 | — |
| Produkt | Benzofuran-2-carboxylic acid (1-amino-2-benzenesulfonyl-ethylidene)-hydrazide | HCID 86757846 | 59,8% |
Reaktionsschritte
3.4 g (0.0125 Mol) of 2-(phenylsulfonyl)-ethanimidic acid ethyl ester was stirred together with 2.2 g (0.015 mol) benzofuran-2-carboxylic acid hydrazide in 80 ml chloroform for 24 hours at 50° C. The resulting precipitate was filtered off and dried. 2.67 g of benzofuran-2-carboxylic acid (1-amino-2-benzenesulfonyl-ethylidene)-hydrazide was obtained as off-white crystals. Mp.: 205-220° C.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US06355653B1 |
| Quelldatensatz | uspto-grants-2002_03 |
| ORD ID | ord-90d700d44f77465ebf7f7a966020652e |
| Quellennotiz | uspto-grants-2002_03 |