HCID 69218590, compound → HCID 86605772, compound

HRID 2221775Notes

Reaction equation

HRID 2221775 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]([CH3:36])[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]([CH3:36])[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 69218590HCID 69218590, compound

Product 1

HCID 86605772HCID 86605772, compoundYield 81.8%

Reagents, catalysts & solvents 2

HCID 178418406HCID 178418406, compoundCatalystHCID 8028TetrahydrofuranSolvent

Procedure

A mixture of {1-benzyl-3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-methylbenzyl)oxy]-1H-pyrazol-4-yl}methanol (0.27 g), activated manganese dioxide (0.90 g) and tetrahydrofuran (20 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-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-methylbenzyl)oxy]-1H-pyrazole-4-carbaldehyde as colorless crystals (0.22 g, yield 81%). Recrystallization from ethyl acetate-hexane gave colorless needle crystals. melting point: 121-122° 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-de0e3edf7aad43cb95035438b572c86c
Source dataset
uspto-grants-2008_05
Patent number
US07368578B2

Reaction notes

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