HuagongsheHuagongshe Chemistry Print Report · For research reference only
1-Benzofuran-2-carbohydrazide → Benzofuran-2-carboxylic acid (1-amino-2-benzenesulfonyl-ethylidene)-hydrazide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1-Benzofuran-2-carbohydrazide | HCID 468646 | — |
| Reactant | 2-(Phenylsulfonyl)-ethanimidic acid ethyl ester | HCID 70089442 | — |
| Solvent | Chloroform | HCID 6212 | — |
| Product | Benzofuran-2-carboxylic acid (1-amino-2-benzenesulfonyl-ethylidene)-hydrazide | HCID 86757846 | 59.8% |
Reaction Steps
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.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06355653B1 |
| Source dataset | uspto-grants-2002_03 |
| ORD ID | ord-90d700d44f77465ebf7f7a966020652e |
| Source note | uspto-grants-2002_03 |