HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
(2,2-Difluorocyclopropyl)methyl 4-nitrobenzenesulfonate → ((1R)-2,2-difluorocyclopropyl)methyl 4-nitrobenzenesulfonate
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | (2,2-Difluorocyclopropyl)methyl 4-nitrobenzenesulfonate | HCID 86731319 | — |
| Lösungsmittel | Ethanol hexane | HCID 21879635 | — |
| Produkt | ((1R)-2,2-difluorocyclopropyl)methyl 4-nitrobenzenesulfonate | HCID 86731320 | — |
Reaktionsschritte
A racemate (48.4 g) of (2,2-difluorocyclopropyl)methyl 4-nitrobenzenesulfonate was resolved by HPLC (column: CHIRALPAK AD (trade name), 50 mmID×500 mL, DAICEL CHEMICAL INDUSTRIES, LTD., mobile phase:hexane/ethanol=50:50) to give the title compound having a shorter retention time (18.4 g). The steric configuration was determined by X ray structure analysis.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US09133129B2 |
| Quelldatensatz | uspto-grants-2015_09 |
| ORD ID | ord-526adb8677db4def9905f42d2676670e |
| Quellennotiz | uspto-grants-2015_09 |