Sodium sulfate decahydrate → {1-benzyl-3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-hydroxybenzyl)oxy]-1H-pyrazol-4-yl}methanol

HRID 2221761Notes

Reaction equation

HRID 2221761 reaction equation
[CH2:1]([N:8]1[CH:12]=[C:11]([C:13](OCC)=[O:14])[C:10]([O:18][CH2:19][C:20]2[CH:25]=[CH:24][C:23]([O:26][CH2:27][C:28]3[N:29]=[C:30]([C:34]4[O:35][CH:36]=[CH:37][CH:38]=4)[O:31][C:32]=3[CH3:33])=[C:22]([OH:39])[CH:21]=2)=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[H-].[Al+3].[Li+].[H-].[H-].[H-].O.O.O.O.O.O.O.O.O.O.S([O-])([O-])(=O)=O.[Na+].[Na+]>O1CCCC1.C(OCC)(=O)C>[CH2:1]([N:8]1[CH:12]=[C:11]([CH2:13][OH:14])[C:10]([O:18][CH2:19][C:20]2[CH:25]=[CH:24][C:23]([O:26][CH2:27][C:28]3[N:29]=[C:30]([C:34]4[O:35][CH:36]=[CH:37][CH:38]=4)[O:31][C:32]=3[CH3:33])=[C:22]([OH:39])[CH:21]=2)=[N:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 3

HCID 62649Sodium sulfate decahydrateHCID 21226445Aluminium lithium hydrideHCID 69215066ethyl 1-benzyl-3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-hydroxybenzyl)oxy]-1H-pyrazole-4-carboxylate

Product 1

HCID 69218628{1-benzyl-3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-hydroxybenzyl)oxy]-1H-pyrazol-4-yl}methanolYield 65%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of ethyl 1-benzyl-3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-hydroxybenzyl)oxy]-1H-pyrazole-4-carboxylate (0.60 g) in tetrahydrofuran (10 mL) was added lithium aluminum hydride (0.07 g) at 0° C. and the mixture was stirred at room temperature for 1 hr. Sodium sulfate decahydrate (0.55 g) was added to the reaction mixture, and the mixture was stirred at room temperature for 30 min. The reaction mixture was diluted with ethyl acetate and the precipitate was filtered off, and the filtrate was concentrated. The residue was subjected to silica gel column chromatography, and eluted with tetrahydrofuran-hexane (1:1, v/v) to obtain {1-benzyl-3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-hydroxybenzyl)oxy]-1H-pyrazol-4-yl}methanol as a colorless oil (0.35 g, yield 65%).

Workup

  1. stirringthe mixture was stirred at room temperature for 30 min
  2. filtrationthe precipitate was filtered off
  3. concentrationthe filtrate was concentrated
  4. washeluted with tetrahydrofuran-hexane (1:1

Sources & evidence

ORD record
ord-36f0dfae600b45b8b625b246c419da29
Source dataset
uspto-grants-2008_05
Patent number
US07368578B2

Reaction notes

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