HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 76170Erstellt: 24. Oktober 2026
1-Ethoxy-4-ethynylbenzene → Tert-butyl 1-(4-((4-ethoxyphenyl)ethynyl)phenyl)ethyl-carbamate
https://huagongshe.com/de/reaction/76170
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|
| Edukt | 1-Ethoxy-4-ethynylbenzene | HCID 2775124 | — |
| Edukt | tert-butyl N-(1-(4-bromophenyl)ethyl)carbamate | HCID 11983730 | — |
| Katalysator | Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI) | HCID 24350 | — |
| Katalysator | HCID 178418397 | HCID 178418397 | — |
| Lösungsmittel | Acetonitrile | HCID 6342 | — |
| Produkt | Tert-butyl 1-(4-((4-ethoxyphenyl)ethynyl)phenyl)ethyl-carbamate | HCID 66610473 | — |
Reaktionsschritte
24.6 g (168 mmol) 1-ethoxy-4-ethynyl-benzene, 52.8 g (176 mmol) [1-(4-Bromo-phenyl)-ethyl]-carbamic acid tert-butyl ester (50.2) and 42.6 mL (307 mmol) TEA are added to 400 mL ACN. The mixture is warmed to 65° C. 8.84 g (7.65 mmol) Pd(PPh3)4 and 2.91 g (15.3 mmol) CuI are added and the reaction mixture is stirred at reflux for 2 h. The mixture is cooled to r.t. and the solvent is removed in vacuo. The crude product is purified by column chromatography (hexane/EtOAC 9:1→3:1).
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patentnummer | US08835472B2 |
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| Quelldatensatz | uspto-grants-2014_09 |
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| ORD ID | ord-c35eeda1cd3e47fda628a35dcc1b3630 |
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| Quellennotiz | uspto-grants-2014_09 |
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