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{1-benzyl-3-[(3-chloro-4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}benzyl)oxy]-1H-pyrazol-4-yl]methanol → 1-benzyl-3-[(3-chloro-4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}benzyl)oxy]-1H-pyrazole-4-carbaldehyde

HRID 2221751
Notes
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Reaction equation

HRID 2221751 reaction equation
[CH2:1]([N:8]1[CH:12]=[C:11]([CH2:13][OH:14])[C:10]([O:15][CH2:16][C:17]2[CH:22]=[CH:21][C:20]([O:23][CH2:24][C:25]3[N:26]=[C:27]([C:31]4[O:32][CH:33]=[CH:34][CH:35]=4)[O:28][C:29]=3[CH3:30])=[C:19]([Cl:36])[CH:18]=2)=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1>[O-2].[O-2].[Mn+4].O1CCCC1>[CH2:1]([N:8]1[CH:12]=[C:11]([CH:13]=[O:14])[C:10]([O:15][CH2:16][C:17]2[CH:22]=[CH:21][C:20]([O:23][CH2:24][C:25]3[N:26]=[C:27]([C:31]4[O:32][CH:33]=[CH:34][CH:35]=4)[O:28][C:29]=3[CH3:30])=[C:19]([Cl:36])[CH:18]=2)=[N:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 1

HCID 69216916{1-benzyl-3-[(3-chloro-4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}benzyl)oxy]-1H-pyrazol-4-yl]methanol

Product 1

HCID 866057671-benzyl-3-[(3-chloro-4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}benzyl)oxy]-1H-pyrazole-4-carbaldehydeYield 88%

Reagents, catalysts & solvents 2

HCID 178418406HCID 178418406, compoundCatalystHCID 8028TetrahydrofuranSolvent

Procedure

A mixture of {1-benzyl-3-[(3-chloro-4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}benzyl)oxy]-1H-pyrazol-4-yl}methanol (0.61 g), activated manganese dioxide (2.0 g) and tetrahydrofuran (50 mL) was stirred at room temperature for 15 hrs. Manganese dioxide was removed by filtration and the filtrate was concentrated. The obtained crystals were collected by filtration to give 1-benzyl-3-[(3-chloro-4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}benzyl)oxy]-1H-pyrazole-4-carbaldehyde (0.53 g, yield 88%). Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 158-159° C.

Workup

  1. customManganese dioxide was removed by filtration
  2. concentrationthe filtrate was concentrated
  3. filtrationThe obtained crystals were collected by filtration

Sources & evidence

ORD record
ord-fe02ba2a36f145d5ae64a37e0dccbf45
Source dataset
uspto-grants-2008_05
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07368578B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes