Hydrochloric Acid → 4-Hydroxymethylnaphthoic Acid

HRID 1610236Notes

Reaction equation

HRID 1610236 reaction equation
[OH:1][CH2:2][C:3]1[C:12]2[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=2)[C:6]([C:13]([O:15]C)=[O:14])=[CH:5][CH:4]=1.[OH-].[Na+].Cl>CO>[OH:1][CH2:2][C:3]1[C:12]2[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=2)[C:6]([C:13]([OH:15])=[O:14])=[CH:5][CH:4]=1

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 10878557Methyl 4-(hydroxymethyl)naphthalene-1-carboxylate

Product 1

HCID 111064024-Hydroxymethylnaphthoic AcidYield 87%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

To a solution of methyl 4-(hydroxymethyl)-1-naphthalenecarboxylate (700 mg, 3.24 mmol) in methanol (10 ml) was added 1N aqueous sodium hydroxide solution (3.24 ml, 3.24 mmol) and the mixture was stirred overnight at room temperature. 1N Hydrochloric acid was added to the reaction solution (5 ml) and the mixture was extracted with ethyl acetate (50 ml×2). The extract was washed with saturated brine, dried over anhydrous magnesium sulfate and evaporated under reduced pressure. The residue was recrystallized from ethyl acetate-hexane to give 4-(hydroxymethyl)-1-naphthalenecarboxylic acid (570 mg, 87%).

Workup

  1. extractionthe mixture was extracted with ethyl acetate (50 ml×2)
  2. washThe extract was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customevaporated under reduced pressure
  5. customThe residue was recrystallized from ethyl acetate-hexane

Sources & evidence

ORD record
ord-e6684ef00a5e4d4aae8a7e4fde503bcb
Source dataset
uspto-grants-2006_01
Patent number
US06982348B2

Reaction notes

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