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Benzyl Bromide → HCID 18443682, Verbindung

HRID 1946368
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1946368
[Cl:1][C:2]1[CH:3]=[C:4]([OH:10])[CH:5]=[CH:6][C:7]=1[CH2:8][OH:9].[CH2:11](Br)[C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1.[OH-].[Na+]>C(O)C.ClCCl>[Cl:1][C:2]1[CH:3]=[C:4]([O:10][CH2:11][C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[CH:5]=[CH:6][C:7]=1[CH2:8][OH:9]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 7498Benzyl BromideHCID 14798Sodium HydroxideHCID 212878153-Chloro-4-(hydroxymethyl)phenol

Produkt 1

HCID 18443682HCID 18443682, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 702EthanolLösungsmittelHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of 3-chloro-4-(hydroxymethyl)phenol (for a preparation see Intermediate 16)(3 g, 18.9 mmol) in ethanol (80 ml) was added benzyl bromide (2.25 ml, 18.9 mmol, Aldrich) and then 2 M aqueous sodium hydroxide (10.4 ml, 20.8 mmol). The mixture was stirred at ambient temperature overnight under nitrogen. The solvent was removed in vacuo to leave an aqueous suspension. The residue was partitioned between dichloromethane (100 ml) and water (100 ml). The phases were separated and the aqueous phase extracted with dichloromethane (50 ml). The combined organic extracts were dried (MgSO4), filtered and the solvent removed in vacuo to leave an oil. The residue was loaded in dichloromethane and purified on silica (100 g×2) using 0-100% ethyl acetate-cyclohexane. The appropriate fractions were combined and evaporated in vacuo to give {2-chloro-4-[(phenylmethyl)oxy]phenyl}methanol as a white solid (2.18 g).

Aufarbeitung

  1. customThe solvent was removed in vacuo
  2. customto leave an aqueous suspension
  3. customThe residue was partitioned between dichloromethane (100 ml) and water (100 ml)
  4. customThe phases were separated
  5. extractionthe aqueous phase extracted with dichloromethane (50 ml)
  6. dry with materialThe combined organic extracts were dried (MgSO4)
  7. filtrationfiltered
  8. customthe solvent removed in vacuo
  9. customto leave an oil
  10. custompurified on silica (100 g×2)
  11. customevaporated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-022879b8d26c413a9349bf7a9c093709
Quelldatensatz
uspto-grants-2013_03
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08399436B2

Notizen zur Reaktion

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