HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetic Anhydride → HCID 70601560, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | HCID 70601525 | HCID 70601525 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | HCID 70601560 | HCID 70601560 | — |
Reaction Steps
The above alcohol is acetylated with acetic anhydride in pyridine to give 17α-acetoxyacetoxypregn-4-ene-3,20-dione, which shows the following significant NMR signals: δ(ppm) 0.69 (s, 3H, H-18), 1.19 (s, 3H, H-19), 2.07 and 2.17 (singlets, 3H each, 2-COCH3), ##STR28## 5.76 (broad s, 1H, H-4).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04177269 |
| Source dataset | uspto-grants-1979_12 |
| ORD ID | ord-f19aaa42b03a4fc5b778e343a42e1b41 |
| Source note | uspto-grants-1979_12 |