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

HRID 2221759Notes

Reaction equation

HRID 2221759 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]([O:36][CH2:37][O:38][CH3:39])[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]([O:36][CH2:37][O:38][CH3:39])[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 23076476{1-benzyl-3-([4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-(methoxymethoxy)benzyl]oxy)-1H-pyrazol-4-yl}methanol

Product 1

HCID 230765691-benzyl-3-([4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-(methoxymethoxy)benzyl]oxy)-1H-pyrazole-4-carbaldehydeYield 89%

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-(methoxymethoxy)benzyl]oxy)-1H-pyrazol-4-yl}methanol (0.80 g), activated manganese dioxide (2.50 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-([4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-(methoxymethoxy)benzyl]oxy)-1H-pyrazole-4-carbaldehyde (0.70 g, yield 89%). Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 141-142° 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-f91b876920ff4e9bb49aed5c38c4ff25
Source dataset
uspto-grants-2008_05
Patent number
US07368578B2

Reaction notes

Loading…