HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydroxylamine → HCID 23339651, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydroxylamine | HCID 787 | — |
| Reactant | Hydroxyamine hydrochloride | HCID 443297 | — |
| Reactant | Sodium | HCID 5360545 | — |
| Reactant | Ethyl alpha-naphthylcarbamoylacetate | HCID 12547460 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 23339651 | HCID 23339651 | 62% |
Reaction Steps
19.3 g (0.075 mol) of ethyl α-naphthylcarbamoylacetate are treated with a solution of hydroxylamine, prepared from 5.6 g (0.08 mol) of hydroxylamine hydrochloride and 3.68 g of sodium in 250 ml of methanol. After leaving the reactants in contact for 5 hours, the mixture is evaporated to dryness in vacuo, the residue is taken up in 400 ml of cold water, the solution is filtered over charcoal, and the product is precipitated cold with 3 N HCl, filtered off and washed with water. CRL 40,518 is obtained by recrystallisation from ethanol. Yield: 62%. Melting point: 184°-186° C. (with decomposition).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04151300 |
| Source dataset | uspto-grants-1979_04 |
| ORD ID | ord-34e19f4dc75d49fc88b2096e844cd957 |
| Source note | uspto-grants-1979_04 |