Thiazolidinedione → 5-(4-{1-Ethyl-1-[4-(2-hydroxy-3,3-dimethyl-butoxy)-3-methyl-phenyl)-propyl}-2-methyl-benzylidene)-thiazolidine-2,4-dione

HRID 502073Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 502073
[CH2:1]([C:3]([C:21]1[CH:28]=[CH:27][C:24]([CH:25]=O)=[C:23]([CH3:29])[CH:22]=1)([C:6]1[CH:11]=[CH:10][C:9]([O:12][CH2:13][CH:14]([OH:19])[C:15]([CH3:18])([CH3:17])[CH3:16])=[C:8]([CH3:20])[CH:7]=1)[CH2:4][CH3:5])[CH3:2].[S:30]1[CH2:34][C:33](=[O:35])[NH:32][C:31]1=[O:36].C(O)(=O)C.N1CCCCC1>C1(C)C=CC=CC=1>[CH2:1]([C:3]([C:21]1[CH:28]=[CH:27][C:24]([CH:25]=[C:34]2[S:30][C:31](=[O:36])[NH:32][C:33]2=[O:35])=[C:23]([CH3:29])[CH:22]=1)([C:6]1[CH:11]=[CH:10][C:9]([O:12][CH2:13][CH:14]([OH:19])[C:15]([CH3:17])([CH3:18])[CH3:16])=[C:8]([CH3:20])[CH:7]=1)[CH2:4][CH3:5])[CH3:2]

Komponenten

5

Edukt 3

HCID 5437ThiazolidinedioneHCID 9793820Piperidine, acetateHCID 577634244-{1-Ethyl-1-[4-(2-hydroxy-3,3-dimethyl-butoxy)-3-methyl-phenyl]-propyl}-2-methyl-benzaldehyde

Produkt 1

HCID 866047825-(4-{1-Ethyl-1-[4-(2-hydroxy-3,3-dimethyl-butoxy)-3-methyl-phenyl)-propyl}-2-methyl-benzylidene)-thiazolidine-2,4-dioneAusbeute 94 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1140TolueneLösungsmittel

Versuchsvorschrift

To a mixture of enantiomer 1 of 4-{1-Ethyl-1-[4-(2-hydroxy-3,3-dimethyl-butoxy)-3-methyl-phenyl]-propyl}-2-methyl-benzaldehyde (0.64 g, 1.61 mmol) and toluene (20 mL) is added 90% 2,4-thiazolidinedione (0.25 g, 1.94 mmol), and piperidine acetate (0.04 g, 0.24 mmol). The solution is heated to a reflux overnight and the water removed by a Dean-Stark trap. The solution is diluted with EtOAc (60 mL), washed with water (50 mL), saturated NaHCO3 (50 mL), dried over MgSO4, filtered and concentrated. Purified by ISCO (20%-50% EtOAc gradient) to furnish the title compound (0.75 g, 1.51 mmol, 94%).

Aufarbeitung

  1. temperatureThe solution is heated to a reflux overnight
  2. customthe water removed by a Dean-Stark trap
  3. additionThe solution is diluted with EtOAc (60 mL)
  4. washwashed with water (50 mL), saturated NaHCO3 (50 mL)
  5. dry with materialdried over MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customPurified by ISCO (20%-50% EtOAc gradient)

Quellen und Nachweise

ORD-Eintrag
ord-34888c4144e24cd8988b05ff9eed7f73
Quelldatensatz
uspto-grants-2010_08
Patentnummer
US07772425B2

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