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Potassium Carbonate → 4'-[(4-hydroxytetrahydro-2H-thiopyran-4-yl)methoxy]-2',6'-dimethylbiphenyl-3-carbaldehyde

HRID 453416
Notes
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Reaction equation

HRID 453416 reaction equation
[O:1]1[C:3]2([CH2:8][CH2:7][S:6][CH2:5][CH2:4]2)[CH2:2]1.[OH:9][C:10]1[CH:15]=[C:14]([CH3:16])[C:13]([C:17]2[CH:22]=[CH:21][CH:20]=[C:19]([CH:23]=[O:24])[CH:18]=2)=[C:12]([CH3:25])[CH:11]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[OH:1][C:3]1([CH2:2][O:9][C:10]2[CH:15]=[C:14]([CH3:16])[C:13]([C:17]3[CH:22]=[CH:21][CH:20]=[C:19]([CH:23]=[O:24])[CH:18]=3)=[C:12]([CH3:25])[CH:11]=2)[CH2:8][CH2:7][S:6][CH2:5][CH2:4]1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 187531011-Oxa-6-thiaspiro(2.5)octaneHCID 231116914'-Hydroxy-2',6'-dimethyl-[1,1'-biphenyl]-3-carbaldehyde

Product 1

HCID 231574564'-[(4-hydroxytetrahydro-2H-thiopyran-4-yl)methoxy]-2',6'-dimethylbiphenyl-3-carbaldehydeYield 78.1%

Reagents, catalysts & solvents 1

HCID 6228
Dimethylformamide
Solvent

Conditions

Temperature
100 °C

Procedure

To a solution of 1-oxa-6-thiaspiro[2.5]octane (6.33 g, 48.6 mmol) and 4′-hydroxy-2′,6′-dimethylbiphenyl-3-carbaldehyde (10.0 g, 44.2 mmol) in N,N-dimethylformamide (150 mL) was added potassium carbonate (6.11 g, 44.2 mmol) at room temperature, and the mixture was stirred at 100° C. for 12 hr. The reaction mixture was concentrated under reduced pressure, the residue was neutralized with 1 M hydrochloric acid, and the mixture was extracted with ethyl acetate. The extract was dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was crystallized from diisopropyl ether to give the title compound (12.3 g, yield 78%) as colorless crystals.

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. extractionthe mixture was extracted with ethyl acetate
  3. dry with materialThe extract was dried over anhydrous sodium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was crystallized from diisopropyl ether

Sources & evidence

ORD record
ord-4b6dcbc46aa843f58a480681c7352a77
Source dataset
uspto-grants-2013_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08492430B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes