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Formic Acid → 2-Hydroxy-5-[[4-[(5-methyl-3-isoxazolyl)aminosulfonyl]phenyl]ethynyl]benzoic acid

HRID 1653922
Notes
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Reaction equation

HRID 1653922 reaction equation
[OH:1][C:2]1[CH:12]=[CH:11][C:10]([C:13]#[C:14][C:15]2[CH:20]=[CH:19][C:18]([S:21]([NH:24][C:25]3[CH:29]=[C:28]([CH3:30])[O:27][N:26]=3)(=[O:23])=[O:22])=[CH:17][CH:16]=2)=[CH:9][C:3]=1[C:4]([O:6]CC)=[O:5].[OH-].[K+].C(O)C.C(O)=O>O>[OH:1][C:2]1[CH:12]=[CH:11][C:10]([C:13]#[C:14][C:15]2[CH:20]=[CH:19][C:18]([S:21]([NH:24][C:25]3[CH:29]=[C:28]([CH3:30])[O:27][N:26]=3)(=[O:23])=[O:22])=[CH:17][CH:16]=2)=[CH:9][C:3]=1[C:4]([OH:6])=[O:5]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 284Formic AcidHCID 702EthanolHCID 14797Potassium HydroxideHCID 19423380Ethyl 2-hydroxy-5-[[4-[(5-methyl-3-isoxazolyl)aminosulfonyl]phenyl]ethynyl]benzoate

Product 1

HCID 194233722-Hydroxy-5-[[4-[(5-methyl-3-isoxazolyl)aminosulfonyl]phenyl]ethynyl]benzoic acid

Reagents, catalysts & solvents 1

HCID 962
Water
Solvent

Procedure

Ethyl 2-hydroxy-5-[[4-[(5-methyl-3-isoxazolyl)aminosulfonyl] phenyl]ethynyl]benzoate (1.5 g) was added to a boiling solution of potassium hydroxide (6 g, 92 mmol) in water (100 ml). After 5 min, ethanol (25 ml) was added and the solution acidified with formic acid. The precipitate was collected by filtration, washed with water and dried. Yield 1.4 g, quantitative.

Workup

  1. filtrationThe precipitate was collected by filtration
  2. washwashed with water
  3. customdried

Sources & evidence

ORD record
ord-846d8d3c68714185b1a06d147a65d481
Source dataset
uspto-grants-1995_04
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US05403930

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes