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[1-[4-(2-phenyl-4-thiazolylmethoxy)benzyl]-3-(2-thienyl)-1H-pyrazol-4-yl]methanol → 1-[4-(2-phenyl-4-thiazolylmethoxy)benzyl]-3-(2-thienyl)-1H-pyrazole-4-carbaldehyde

HRID 350023
Notes
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Reaction equation

HRID 350023 reaction equation
[C:1]1([C:7]2[S:8][CH:9]=[C:10]([CH2:12][O:13][C:14]3[CH:32]=[CH:31][C:17]([CH2:18][N:19]4[CH:23]=[C:22]([CH2:24][OH:25])[C:21]([C:26]5[S:27][CH:28]=[CH:29][CH:30]=5)=[N:20]4)=[CH:16][CH:15]=3)[N:11]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1>[O-2].[O-2].[Mn+4].O1CCCC1>[C:1]1([C:7]2[S:8][CH:9]=[C:10]([CH2:12][O:13][C:14]3[CH:32]=[CH:31][C:17]([CH2:18][N:19]4[CH:23]=[C:22]([CH:24]=[O:25])[C:21]([C:26]5[S:27][CH:28]=[CH:29][CH:30]=5)=[N:20]4)=[CH:16][CH:15]=3)[N:11]=2)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 1

HCID 69420295[1-[4-(2-phenyl-4-thiazolylmethoxy)benzyl]-3-(2-thienyl)-1H-pyrazol-4-yl]methanol

Product 1

HCID 230247701-[4-(2-phenyl-4-thiazolylmethoxy)benzyl]-3-(2-thienyl)-1H-pyrazole-4-carbaldehydeYield 98%

Reagents, catalysts & solvents 2

HCID 178418406HCID 178418406, compoundCatalystHCID 8028TetrahydrofuranSolvent

Procedure

A mixture of [1-[4-(2-phenyl-4-thiazolylmethoxy)benzyl]-3-(2-thienyl)-1H-pyrazol-4-yl]methanol (5.57 g), activated manganese dioxide (16.11 g), and tetrahydrofuran (100 ml) was stirred at room temperature overnight. After the manganese dioxide was removed by filtration, the filtrate was concentrated to obtain 1-[4-(2-phenyl-4-thiazolylmethoxy)benzyl]-3-(2-thienyl)-1H-pyrazole-4-carbaldehyde (5.39 g, yield: 98%) as colorless crystals. This was recrystallized from acetone-hexane. Melting point: 115˜116° C.

Workup

  1. customAfter the manganese dioxide was removed by filtration
  2. concentrationthe filtrate was concentrated

Sources & evidence

ORD record
ord-0ef4ed37fd2f498ea3a20ab69e2ed5ec
Source dataset
uspto-grants-2007_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07179823B1

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes