HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → HCID 178511719, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Hydrazine hydrate (1:1) | HCID 24654 | — |
| Reactant | HCID 178515020 | HCID 178515020 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 178511719 | HCID 178511719 | 88.5% |
Reaction Steps
To a solution of 0.7 g of racemic trans-2-[4-(2-fluoro-2-phenyl-ethoxy)-cyclohexyl]-isoindole-1,3-dione in 15 mL of THF and 15 mL of ethanol was added 0.3 mL of hydrazine hydrate and the mixture heated to reflux for 4 h, then 5 mL of 6N HCl was added and the reflux was continued for 1 h. The cooled mixture was concentrated under reduced pressure to remove ethanol and filtered. The filter pad was washed with 2×10 mL of dilute HCl and the combined filtrates basified to pH 10 with 20% sodium hydroxide and extracted with 3×25 mL portions of chloroform. The combined extracts were dried over magnesium sulfate and concentrated under reduced pressure. Further drying under vacuum gave 0.4 g of product as an oil. MS (m+1)=238.3.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07452893B2 |
| Source dataset | uspto-grants-2008_11 |
| ORD ID | ord-926955d63326440c8ded577a485961a6 |
| Source note | uspto-grants-2008_11 |