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Hydrochloric Acid → 1-Phthalimido-4-p-toluenesulfonyl-6,6-difluoro-8-hydroxy-4-aza-octane

HRID 2309600
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2309600
[C:1]1(=[O:39])[N:5]([CH2:6][CH2:7][CH2:8][N:9]([S:24]([C:27]2[CH:32]=[CH:31][C:30]([CH3:33])=[CH:29][CH:28]=2)(=[O:26])=[O:25])[CH2:10][C:11]([F:23])([F:22])[CH2:12][CH2:13][O:14]CC2C=CC=CC=2)[C:4](=[O:34])[C:3]2=[CH:35][CH:36]=[CH:37][CH:38]=[C:2]12.C[Si](I)(C)C.C(N(CC)CC)C.Cl>ClCCl.CO>[C:4]1(=[O:34])[N:5]([CH2:6][CH2:7][CH2:8][N:9]([S:24]([C:27]2[CH:28]=[CH:29][C:30]([CH3:33])=[CH:31][CH:32]=2)(=[O:25])=[O:26])[CH2:10][C:11]([F:23])([F:22])[CH2:12][CH2:13][OH:14])[C:1](=[O:39])[C:2]2=[CH:38][CH:37]=[CH:36][CH:35]=[C:3]12
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 313Hydrochloric AcidHCID 8471TriethylamineHCID 85247Trimethylsilyl iodideHCID 198607071-Phthalimido-4-p-toluenesulfonyl-6,6-difluoro-8-benzyloxy-4-aza-octane

Produkt 1

HCID 198606861-Phthalimido-4-p-toluenesulfonyl-6,6-difluoro-8-hydroxy-4-aza-octane

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 887
Methanol
Lösungsmittel
2×
HCID 6344DichloromethaneLösungsmittel2×

Versuchsvorschrift

A solution of 1-phthalimido-4-p-toluenesulfonyl-6,6-difluoro-8-benzyloxy-4-aza-octane (9.5 g, 17.1 mM) and trimethylsilyl iodide (2.7 mL, 10% excess) in dry dichloromethane is stirred overnight at room temperature under nitrogen. Triethylamine (3 g) is added, and stirring is continued for 1 hour at room temperature. Following the addition of more dichloromethane, the reaction mixture is washed with 1N HCl (twice), aqueous NaHSO3 (twice), brine (twice), and dried (Na2SO4). The solvents are removed by evaporation to yield an oil. This oil is dissolved in methanol and 1 mL of a 9N solution of HCl in methanol is added. The mixture is evaporated and stripped twice with CCl4 to provide an oil, which upon scratching with ether/petroleum ether yields 1-phthalimido-4-p-toluenesulfonyl-6,6-difluoro-8-hydroxy-4-aza-octane as slightly violet crystals: 6.8 g (85%).

Aufarbeitung

  1. washthe reaction mixture is washed with 1N HCl (twice), aqueous NaHSO3 (twice), brine (twice), and
  2. dry with materialdried (Na2SO4)
  3. customThe solvents are removed by evaporation
  4. customto yield an oil
  5. customThe mixture is evaporated
  6. customto provide an oil, which

Quellen und Nachweise

ORD-Eintrag
ord-d3425e8bf6bc4d3482445f838d219460
Quelldatensatz
uspto-grants-1987_09
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US04695654

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