HuagongsheHuagongshe Chemistry Print Report · For research reference only
Cyproterone Acetate → HCID 56634126, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Cyproterone Acetate | HCID 9880 | — |
| Reactant | 1,1'-Biphenyl, mixt. with 1,1'-oxybis(benzene) | HCID 24670 | — |
| Product | HCID 56634126 | HCID 56634126 | 89% |
Reaction Steps
One gram of 17α-acetoxy-6-chloro-1α,2α-methylene-4,6-pregnadiene-3,20-dione is heated analogously to Example 1 in "Dowtherm" for 90 minutes to 285° C., worked up, separated, and combined. Recrystallization from ethanol yields 380 mg of 6-chloro-1α,2α-methylene-4,6,16-pregnatriene-3,20-dione (89% of theory), m.p. 243°-246° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04290963 |
| Source dataset | uspto-grants-1981_09 |
| ORD ID | ord-72960faca6a746afbc858eeecd2165af |
| Source note | uspto-grants-1981_09 |