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Methyl 4-(3,4,5,6-tetramethoxy-2-methylbenzyl)-2-phenylbenzoate → 4-(3,4,5,6-Tetramethoxy-2-methylbenzyl)-2-phenylbenzoic Acid

HRID 1245175
Notes
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Reaction equation

HRID 1245175 reaction equation
[CH3:1][O:2][C:3]1[C:4]([CH3:32])=[C:5]([C:23]([O:30][CH3:31])=[C:24]([O:28][CH3:29])[C:25]=1[O:26][CH3:27])[CH2:6][C:7]1[CH:16]=[CH:15][C:10]([C:11]([O:13]C)=[O:12])=[C:9]([C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[CH:8]=1>[OH-].[Na+].O1CCOCC1.O>[CH3:1][O:2][C:3]1[C:4]([CH3:32])=[C:5]([C:23]([O:30][CH3:31])=[C:24]([O:28][CH3:29])[C:25]=1[O:26][CH3:27])[CH2:6][C:7]1[CH:16]=[CH:15][C:10]([C:11]([OH:13])=[O:12])=[C:9]([C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[CH:8]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 1

HCID 10113900Methyl 4-(3,4,5,6-tetramethoxy-2-methylbenzyl)-2-phenylbenzoate

Product 1

HCID 121472794-(3,4,5,6-Tetramethoxy-2-methylbenzyl)-2-phenylbenzoic AcidYield 93.5%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 14798Sodium HydroxideSolventHCID 312751,4-DioxaneSolvent

Procedure

Methyl 4-(3,4,5,6-tetramethoxy-2-methylbenzyl)-2-phenylbenzoate (84 mg, 0.1926 mmol) was dissolved in a mixed solution of a 1N aqueous solution of sodium hydroxide (5 ml) and 1,4-dioxane (5 ml) followed by stirring at room temperature for 16 hours. The reaction solution was diluted with water (20 ml), washed with ether, acidified with concentrated hydrochloric acid and extracted with ether. The extract was washed with water and dried and the solvent was evaporated therefrom to give the title compound (45 mg, 0.1800 mmol, 93%).

Workup

  1. washwashed with ether
  2. extractionextracted with ether
  3. washThe extract was washed with water
  4. customdried
  5. customthe solvent was evaporated

Sources & evidence

ORD record
ord-995c0311cd8e4dec87f3554ccb5199a7
Source dataset
uspto-grants-2006_10
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07122543B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes