HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → HCID 18990401, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Sodium borohydride | HCID 4311764 | — |
| Reactant | HCID 54021516 | HCID 54021516 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 18990401 | HCID 18990401 | 75.6% |
Reaction Steps
To a solution containing 0.85 g of ethyl 2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)acrylate (Example 81) in 70 ml of dry ethanol 0.3 g of sodium borohydride was gradually added. The solution was stirred for 0.5 h at room temperature, acidified with hydrochloric acid and extracted with ethyl acetate. The solvent was evaporated yielding 0.55 g (75%) of yellow crystals, m.p. 149°-152° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05283352 |
| Source dataset | uspto-grants-1994_02 |
| ORD ID | ord-e6b030e09e474977b9c4c5bd44146a55 |
| Source note | uspto-grants-1994_02 |