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Hydrochloric Acid → 5-[3-(4-Fluoro-phenyl)-5-methyl-isoxazol-4-ylmethoxy]-2H-pyrazole-3-carboxylic acid

HRID 1695337
Notes
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Reaction equation

HRID 1695337 reaction equation
C[O:2][C:3]([C:5]1[NH:6][N:7]=[C:8]([O:10][CH2:11][C:12]2[C:13]([C:18]3[CH:23]=[CH:22][C:21]([F:24])=[CH:20][CH:19]=3)=[N:14][O:15][C:16]=2[CH3:17])[CH:9]=1)=[O:4].[OH-].[Na+].Cl>O1CCOCC1>[F:24][C:21]1[CH:22]=[CH:23][C:18]([C:13]2[C:12]([CH2:11][O:10][C:8]3[CH:9]=[C:5]([C:3]([OH:4])=[O:2])[NH:6][N:7]=3)=[C:16]([CH3:17])[O:15][N:14]=2)=[CH:19][CH:20]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 666438345-[3-(4-fluoro-phenyl)-5-methyl-isoxazol-4-ylmethoxy]-2H-pyrazole-3-carboxylic acid methyl ester

Product 1

HCID 666436795-[3-(4-Fluoro-phenyl)-5-methyl-isoxazol-4-ylmethoxy]-2H-pyrazole-3-carboxylic acidYield 100.3%

Reagents, catalysts & solvents 1

HCID 31275
1,4-Dioxane
Solvent

Conditions

Temperature
90 °C

Procedure

To a solution of 5-[3-(4-fluoro-phenyl)-5-methyl-isoxazol-4-ylmethoxy]-2H-pyrazole-3-carboxylic acid methyl ester (200 mg, 0.6 mmol) in dioxane (5 mL) was added aqueous sodium hydroxide (2 M, 3.0 mL, 6.0 mmol). After heating at 90° C. for 2 h the solution was cooled to room temperature and neutralized with aqueous hydrogen chloride (2 N). The precipitate was then filtered off and dried to afford the title compound (191 mg, 100%) as a white solid.

Workup

  1. filtrationThe precipitate was then filtered off
  2. customdried

Sources & evidence

ORD record
ord-b2ade3cbe54b4076a7fccc5fdee7276c
Source dataset
uspto-grants-2012_04
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08163728B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes