HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 1994570Erstellt: 24. Oktober 2026
Ethyl Acetate → 4'-Fluoro-2'-methoxy-5'-(1-methylethyl)-4-(trifluoromethyl)(1,1'-biphenyl)-2-methanol
https://huagongshe.com/de/reaction/1994570
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|
| Edukt | Ethyl Acetate | HCID 8857 | — |
| Edukt | Sodium Carbonate | HCID 10340 | — |
| Edukt | (2-Iodo-5-(trifluoromethyl)phenyl)methanol | HCID 23160665 | — |
| Edukt | (4-Fluoro-5-isopropyl-2-methoxyphenyl)boronic acid | HCID 53363739 | — |
| Katalysator | HCID 178418397 | HCID 178418397 | — |
| Lösungsmittel | Benzene ethanol water | HCID 66847609 | — |
| Produkt | 4'-Fluoro-2'-methoxy-5'-(1-methylethyl)-4-(trifluoromethyl)(1,1'-biphenyl)-2-methanol | HCID 53363828 | — |
Reaktionsschritte
A mixture of [2-iodo-5-(trifluoromethyl)phenyl]methanol (EXAMPLE 69) (3.09 g, 10.2 mmol), (4-fluoro-5-isopropyl-2-methoxyphenyl)boronic acid (4.34 g, 20.5 mmol), (Ph3P)4Pd (1.42 g, 1.23 mmol) and Na2CO3 (9.11 g, 85.9 mmol) in benzene/EtOH/H2O (7:1:3, 250 mL) was heated at reflux for 24 h under N2. After cooling to room temperature, the aqueous phase was separated and extracted with CH2Cl2 (3×50 mL). The combined organic layers were dried (Na2SO4) and concentrated in vacuo to give the crude product. This was purified by flash chromatography (Si, 65×200 mm, 0-20% EtOAc in hexanes gradient) to afford 4′-fluoro-5′-isopropyl-2′-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methanol. Rf=0.50 (20% EtOAc in hexanes). 1H NMR (500 MHz, CDCl3) δ 7.86 (s, 1H), 7.59 (d, J=6.7 Hz, 1H), 7.30 (d, J=7.9 Hz, 1H), 6.99 (d, J=8.6 Hz, 1H), 6.68 (d, J=12.0 Hz, 1H), 4.52 (br s, 1H), 4.46 (br s, 1H), 3.73 (s, 3H), 3.25-3.17 (m, 1H), 1.82 (br s, 1H), 1.24 (d, J=6.8 Hz, 6H).
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patentnummer | US07652049B2 |
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| Quelldatensatz | uspto-grants-2010_01 |
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| ORD ID | ord-d420662298994e0191964c10fa1d1fae |
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| Quellennotiz | uspto-grants-2010_01 |
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