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Hydrochloric Acid → 5-[2-tert-butyl-4-(2-hydroxyethoxy)-5-methyl-phenyl]sulfanyl-4-hydroxy-2,2-bis[2-(4-hydroxy-3-methoxy-phenyl)ethyl]-3H-pyran-6-one

HRID 356552
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 356552
[OH:1][C:2]1[CH2:7][C:6]([CH2:19][CH2:20][C:21]2[CH:26]=[CH:25][C:24]([OH:27])=[C:23]([O:28][CH3:29])[CH:22]=2)([CH2:8][CH2:9][C:10]2[CH:15]=[CH:14][C:13]([OH:16])=[C:12]([O:17][CH3:18])[CH:11]=2)[O:5][C:4](=[O:30])[CH:3]=1.[C:31]([C:35]1[CH:40]=[C:39]([O:41][CH2:42][CH2:43][O:44][Si](C(C)(C)C)(C)C)[C:38]([CH3:52])=[CH:37][C:36]=1[S:53]S(C1C=CC(C)=CC=1)(=O)=O)([CH3:34])([CH3:33])[CH3:32].Cl>CN(C=O)C>[C:31]([C:35]1[CH:40]=[C:39]([O:41][CH2:42][CH2:43][OH:44])[C:38]([CH3:52])=[CH:37][C:36]=1[S:53][C:3]1[C:4](=[O:30])[O:5][C:6]([CH2:8][CH2:9][C:10]2[CH:15]=[CH:14][C:13]([OH:16])=[C:12]([O:17][CH3:18])[CH:11]=2)([CH2:19][CH2:20][C:21]2[CH:26]=[CH:25][C:24]([OH:27])=[C:23]([O:28][CH3:29])[CH:22]=2)[CH2:7][C:2]=1[OH:1])([CH3:34])([CH3:33])[CH3:32]
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Komponenten

5

Edukt 3

HCID 313Hydrochloric AcidHCID 10791774Toluene-4-thiosulfonic acid S-{2-tert-butyl-4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-5-methyl-phenyl}esterHCID 546822754-Hydroxy-6,6-bis-[2-(4-hydroxy-3-methoxy-phenyl)-ethyl]-5,6-dihydro-pyran-2-one

Produkt 1

HCID 546822815-[2-tert-butyl-4-(2-hydroxyethoxy)-5-methyl-phenyl]sulfanyl-4-hydroxy-2,2-bis[2-(4-hydroxy-3-methoxy-phenyl)ethyl]-3H-pyran-6-one

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

The compound was prepared using General Method 9 and the following quantities: 100 mg (0.24 mmol) of 4-hydroxy-6,6-bis-[2-(4-hydroxy-3-methoxy-phenyl)-ethyl]-5,6-dihydro-pyran-2-one (prepared in Example QQ), 123 mg (0.24 mol) of toluene-4-thiosulfonic acid S-{2-tert-butyl-4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-5-methyl-phenyl} ester (prepared in Example PPP), 133 mg (0.96 mmol) of K2 CO3, and 10 mL of DMF. The reaction was worked up by addition of 10 mL 1.0N HCl and stirring for 10 minutes, followed by extraction with EtOAc. The organic layer was dried (Na2SO4), concentrated, and chromatographed on silica gel, eluting with (1:1 CH2Cl2 :EtOAc+2% MeOH), to give the title compound, m.p. 76°-82° C. 1H NMR (DMSO-d6) δ 1.5 (s, 9 H), 1.75 (s, 3 H), 2.05 (m, 4 H), 2.6 (m, 4 H), 2.95 (s, 2 H), 3.7 (m, 8 H), 3.95 (t, 2 H), 4.8 (br s, 1 H), 6.65 (m, 7 H), 7.0 (s, 1 H), 8.75 (s, 2 H).

Aufarbeitung

  1. customThe compound was prepared
  2. extractionfollowed by extraction with EtOAc
  3. dry with materialThe organic layer was dried (Na2SO4)
  4. concentrationconcentrated
  5. customchromatographed on silica gel
  6. washeluting with (1:1 CH2Cl2 :EtOAc+2% MeOH)

Quellen und Nachweise

ORD-Eintrag
ord-46f03ad042af43be9c5f82644cf0e21a
Quelldatensatz
uspto-grants-1998_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05834506

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