HCID 69215618, compound → HCID 86605774, compound

HRID 2221783Notes

Reaction equation

HRID 2221783 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]([CH2:36][CH3:37])[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]([CH2:36][CH3:37])[CH:18]=2)=[N:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

4

Reactant 1

HCID 69215618HCID 69215618, compound

Product 1

HCID 86605774HCID 86605774, compoundYield 87.3%

Reagents, catalysts & solvents 2

HCID 178418406HCID 178418406, compoundCatalystHCID 8028TetrahydrofuranSolvent

Procedure

A mixture of {1-benzyl-3-[(3-ethyl-4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}benzyl)oxy]-1H-pyrazol-4-yl}methanol (0.23 g), activated manganese dioxide (0.70 g) and tetrahydrofuran (10 mL) was stirred at room temperature for 3 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-ethyl-4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}benzyl)oxy]-1H-pyrazole-4-carbaldehyde as colorless crystals (0.20 g, yield 87%). Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 128-129° 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-542856b7c7c64ede9f362d1a39e6eb54
Source dataset
uspto-grants-2008_05
Patent number
US07368578B2

Reaction notes

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