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Hydrochloric Acid → 3-[4-(Trifluoromethyl)phenyl]but-2-enoic acid

HRID 2056861
Notes
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Reaction equation

HRID 2056861 reaction equation
[F:1][C:2]([F:18])([F:17])[C:3]1[CH:8]=[CH:7][C:6](/[C:9](/[CH3:16])=[CH:10]/[C:11]([O:13]CC)=[O:12])=[CH:5][CH:4]=1.[OH-].[Na+].Cl>CCO.[Cl-].[Na+].O>[F:1][C:2]([F:17])([F:18])[C:3]1[CH:4]=[CH:5][C:6](/[C:9](/[CH3:16])=[CH:10]/[C:11]([OH:13])=[O:12])=[CH:7][CH:8]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 69760751ethyl(2E)-3-[4-(trifluoromethyl)phenyl]-2-butenoate

Product 1

HCID 287914333-[4-(Trifluoromethyl)phenyl]but-2-enoic acid

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 57417360
On this pageParticipantsProcedureWorkupSources & evidenceReaction notes
Sodium chloride; water
Solvent

Procedure

The product from Example 142A (3.5 g, 13.5 mmol) in EtOH (80 mL) was treated with aqueous 1M NaOH (40 mL) and stirred for 16 hours at ambient temperature. The reaction mixture was neutralized with 1N HCl (40 mL), diluted with brine, and extracted with diethyl ether to provide the title compound. NMR (CDCl3) 2.60 (s, 3H), 6.82 (s, 1H), 7.58 (d, 2H), 7.65 (d, 2H).

Workup

  1. extractionextracted with diethyl ether

Sources & evidence

ORD record
ord-02fb427ce50043b6b84f684f101d78fc
Source dataset
uspto-grants-2008_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07335678B2

Reaction notes

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