HuagongsheHuagongshe Chemistry Print Report · For research reference only
Dichloromethane → 3beta-Tribenzylsilyloxy-7alpha-chloro-5,6beta-epoxy-15beta,16beta-methylene-5beta-androstan-17-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Dichloromethane | HCID 6344 | — |
| Reactant | Triphenylphosphine | HCID 11776 | — |
| Reactant | 3beta-Tribenzylsilyloxy-5,6beta-epoxy-7beta-hydroxy-15beta,16beta-methylene-5beta-androstan-17-one | HCID 88686820 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Solvent | Carbon Tetrachloride | HCID 5943 | — |
| Product | 3beta-Tribenzylsilyloxy-7alpha-chloro-5,6beta-epoxy-15beta,16beta-methylene-5beta-androstan-17-one | HCID 88687372 | — |
Reaction Steps
24 g of 3β-tribenzylsilyloxy-5,6β-epoxy-7β-hydroxy-15β,16β-methylene-5β-androstan-17-one is dissolved in a mixture of 250 ml of methylene chloride, 250 ml of carbon tetrachloride, and 125 ml of pyridine and stirred with 24 g of triphenylphosphine for 3 hours. The mixture is then washed with water, dried over sodium sulfate, and concentrated under vacuum. After chromatography on silica gel with hexane-acetone, 19.8 g of 3β-tribenzylsilyloxy-7α-chloro-5,6β-epoxy-15β,16β-methylene-5β-androstan-17-one is obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04416985 |
| Source dataset | uspto-grants-1983_11 |
| ORD ID | ord-3b0c40187f054d77b3bf4c700ce03659 |
| Source note | uspto-grants-1983_11 |