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

HRID 2221730Notes

Reaction equation

HRID 2221730 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]([O:39][CH3:40])[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]([O:39][CH3:40])[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 69215985ethyl 1-benzyl-3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-methoxybenzyl)oxy]-1H-pyrazole-4-carboxylate

Product 1

HCID 69217584(1-benzyl-3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy)-3-methoxybenzyl)oxy]-1H-pyrazol-4-yl}methanolYield 96.5%

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-methoxybenzyl)oxy]-1H-pyrazole-4-carboxylate (1.46 g) in tetrahydrofuran (50 mL) was added lithium aluminum hydride (0.10 g) at 0° C. and the mixture was stirred at room temperature for 3 hrs. Sodium sulfate decahydrate (0.87 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. The filtrate was concentrated to give (1-benzyl-3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy)-3-methoxybenzyl)oxy]-1H-pyrazol-4-yl}methanol as colorless crystals (1.30 g, yield 96%). Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 104-105° C.

Workup

  1. stirringthe mixture was stirred at room temperature for 30 min
  2. filtrationthe precipitate was filtered off
  3. concentrationThe filtrate was concentrated

Sources & evidence

ORD record
ord-89fec18bd7624c34be5c5dd6c4ae9fba
Source dataset
uspto-grants-2008_05
Patent number
US07368578B2

Reaction notes

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