Dimethylformamide → 3-[2-tert-Butyl-4-(2-hydroxy-ethoxy)-5-methyl-phenylsulfanyl]-4-hydroxy-6,6-bis-[2-(4-hydroxy-phenyl)-ethyl]-5,6-dihydro-pyran-2-one

HRID 356547Notizen

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Reaktionsgleichung von HRID 356547
[OH:1][C:2]1[CH2:7][C:6]([CH2:17][CH2:18][C:19]2[CH:24]=[CH:23][C:22]([OH:25])=[CH:21][CH:20]=2)([CH2:8][CH2:9][C:10]2[CH:15]=[CH:14][C:13]([OH:16])=[CH:12][CH:11]=2)[O:5][C:4](=[O:26])[CH:3]=1.[C:27]([C:31]1[CH:36]=[C:35]([O:37][CH2:38][CH2:39][O:40][Si](C(C)(C)C)(C)C)[C:34]([CH3:48])=[CH:33][C:32]=1[S:49]S(C1C=CC(C)=CC=1)(=O)=O)([CH3:30])([CH3:29])[CH3:28].C([O-])([O-])=O.[K+].[K+].CN(C=O)C>CO.Cl>[C:27]([C:31]1[CH:36]=[C:35]([O:37][CH2:38][CH2:39][OH:40])[C:34]([CH3:48])=[CH:33][C:32]=1[S:49][C:3]1[C:4](=[O:26])[O:5][C:6]([CH2:17][CH2:18][C:19]2[CH:20]=[CH:21][C:22]([OH:25])=[CH:23][CH:24]=2)([CH2:8][CH2:9][C:10]2[CH:11]=[CH:12][C:13]([OH:16])=[CH:14][CH:15]=2)[CH2:7][C:2]=1[OH:1])([CH3:30])([CH3:29])[CH3:28]

Komponenten

7

Edukt 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 10791774Toluene-4-thiosulfonic acid S-{2-tert-butyl-4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-5-methyl-phenyl}esterHCID 546822654-Hydroxy-6,6-bis-[2-(4-hydroxy-phenyl)-ethyl]-5,6-dihydro-pyran-2-one

Produkt 1

HCID 546822993-[2-tert-Butyl-4-(2-hydroxy-ethoxy)-5-methyl-phenylsulfanyl]-4-hydroxy-6,6-bis-[2-(4-hydroxy-phenyl)-ethyl]-5,6-dihydro-pyran-2-one

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 313Hydrochloric AcidLösungsmittelHCID 887MethanolLösungsmittel

Versuchsvorschrift

The title compound was synthesized using General Method 9 using 0.07 g (2 mmol) of 4-hydroxy-6,6-bis-[2-(4-hydroxy-phenyl)-ethyl]-5,6-dihydro-pyran-2-one (prepared in Example PP), 1.00 g (2 mmol) of toluene-4-thiosulfonic acid S-{2-tert-butyl-4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-5-methyl-phenyl} ester (prepared in Example PPP), 1.06 g (8 mmol) K2CO3, and DMF (5 mL). The solid which was obtained was then dissolved in 20 mL MeOH and 2 mL of 1N HCl. After 15 minutes the reaction was concentrated and the residue partitioned between EtOAc and H2O; the organic layer was separated, dried (Na2SO4) and concentrated. Trituration with Et2O yielded the title compound, m.p. 106°-107° C. 1H NMR (DMSO-d6) δ 1.49 (s, 9 H), 1.75 (s, 3 H), 2.0 (t, 4 H), 2.5 (t, 4 H), 3.4 (dd, 2 H), 3.7 (bs, 2 H), 3.95 (t, 2 H), 4.8 (br s, 1 H), 6.66 (d, 4 H), 6.7 (s, 1 H), 6.8 (s, 1 H), 6.98 (d, 4 H), 9.17 (s, 2 H).

Aufarbeitung

  1. customThe title compound was synthesized
  2. customThe solid which was obtained
  3. concentrationAfter 15 minutes the reaction was concentrated
  4. customthe residue partitioned between EtOAc and H2O
  5. customthe organic layer was separated
  6. dry with materialdried (Na2SO4)
  7. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-602010b937804b82ae923dd39b34c0a9
Quelldatensatz
uspto-grants-1998_11
Patentnummer
US05834506

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