HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → HCID 70636247, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | HCID 86735254 | HCID 86735254 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 70636247 | HCID 70636247 | — |
Reaction Steps
A solution of 20 parts of sodium 20-cyano-3β-hydroxypregna-5,17(20)-diene-21-carboxylate in 1000 parts of warm water is acidified with 100 parts of 4% hydrochloric acid. Approximately 1 hour later, the precipitate which has formed is separated by filtration, washed with water, dried in vacuo, and recrystallized from methanol to give 20-cyano-3β-hydroxypregna-5,17(20)-diene-21-carboxylic acid melting at 245°-250°. The product has the formula ##STR3##
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04062843 |
| Source dataset | uspto-grants-1977_12 |
| ORD ID | ord-8f9ef3ced3e447c3ba730a371f9ce9a8 |
| Source note | uspto-grants-1977_12 |