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Guaiacol → HCID 54555031, Verbindung

HRID 1613810
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1613810
[CH3:1][O:2][C:3]1[CH:13]=[CH:12][CH:11]=[CH:10][C:4]=1[O:5][CH2:6][CH2:7][CH2:8][OH:9].C1(OC)C(=CC=CC=1)O.BrCCCO.C(=O)([O-])[O-].[K+].[K+].C(N(CC)CC)C.[S:41](Cl)(=[O:44])(=[O:43])[NH2:42]>CC(C)=O.C(Cl)Cl>[CH3:1][O:2][C:3]1[CH:13]=[CH:12][CH:11]=[CH:10][C:4]=1[O:5][CH2:6][CH2:7][CH2:8][O:9][S:41](=[O:44])(=[O:43])[NH2:42]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

9

Edukt 6

HCID 460GuaiacolHCID 8471TriethylamineHCID 11430Potassium CarbonateHCID 123083-Bromo-1-propanolHCID 24499Chlorosulfamic acidHCID 13629100HCID 13629100, Verbindung

Produkt 1

HCID 54555031
HCID 54555031, Verbindung
Ausbeute 37,2 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 180AcetoneLösungsmittelHCID 6344DichloromethaneLösungsmittel2×

Versuchsvorschrift

A solution of 13.0 g (0.071 mole) of 3-(2-methoxyphenoxy)-1-propanol (prepared in 68% yield from guaiacol (43.2 g, 0.35 mole), 3-bromo-1-propanol (89.3 g, 0.61 mole) and potassium carbonate (112.0 g, 0.81 mole) in 1 l of acetone and 9.0 g (0.089 mole) of triethylamine in 50 ml of methylene chloride was added dropwise (20 min.) to a stirred, cooled (ice-acetone bath) solution of 22 ml (0.0786 mole) of sulfamoyl chloride (3.57M solution in acetonitrile, Preparation 20) in 30 ml methylene chloride at such a rate the temperature was maintained at ≤12° C. The reaction mixture was stirred at ambient temperature for 3 hr. The solvents were evaporated under reduced pressure and the viscous residue was triturated with 300 ml of ethyl acetate and the solids removed by filtration. The filtrate was washed with three 300 ml portions of water, dried (magnesium sulfate) and the solvent evaporated under reduced pressure to yield 11.7 g (63%) of a colorless, viscous oil that solidified upon standing. The solid was recrystallized from methylene chloride-petroleum ether (30°-60° C.) to give 6.9 g (37%) of the title compound as a white solid, mp 80°-83° C.

Aufarbeitung

  1. additionwas added dropwise (20 min.) to a stirred
  2. temperaturewas maintained at ≤12° C
  3. customThe solvents were evaporated under reduced pressure
  4. customthe viscous residue was triturated with 300 ml of ethyl acetate
  5. customthe solids removed by filtration
  6. washThe filtrate was washed with three 300 ml portions of water
  7. dry with materialdried (magnesium sulfate)
  8. customthe solvent evaporated under reduced pressure
  9. customto yield 11.7 g (63%) of a colorless, viscous oil that
  10. customThe solid was recrystallized from methylene chloride-petroleum ether (30°-60° C.)

Quellen und Nachweise

ORD-Eintrag
ord-48678347abff491ea8d5dfb661c930ec
Quelldatensatz
uspto-grants-1993_03
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05194446

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