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Water → 4-[2-(2-Pyrimidinylamino)ethoxy]benzaldehyde

HRID 2253637
Notes
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Reaction equation

HRID 2253637 reaction equation
[H-].[Na+].[N:3]1[CH:8]=[CH:7][CH:6]=[N:5][C:4]=1[NH:9][CH2:10][CH2:11][OH:12].F[C:14]1[CH:21]=[CH:20][C:17]([CH:18]=[O:19])=[CH:16][CH:15]=1.O>CN(C=O)C>[N:3]1[CH:8]=[CH:7][CH:6]=[N:5][C:4]=1[NH:9][CH2:10][CH2:11][O:12][C:14]1[CH:21]=[CH:20][C:17]([CH:18]=[O:19])=[CH:16][CH:15]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 962WaterHCID 24758Sodium hydrideHCID 680234-FluorobenzaldehydeHCID 5727142-(Pyrimidin-2-ylamino)ethanol

Product 1

HCID 100146614-[2-(2-Pyrimidinylamino)ethoxy]benzaldehyde

Reagents, catalysts & solvents 1

HCID 6228Dimethylformamide
Solvent

Conditions

Temperature
80 °C

Procedure

Sodium hydride (1.2 g; 60% dispersion in oil) was added portionwise to a stirred solution of 2-(2-pyrimidinyl amino)ethanol (4 g) in DMF (140 ml) under an atmosphere of nitrogen. After the vigorous reaction had subsided 4-fluorobenzaldehyde (5.35 g) was added and the solution heated to 80° C. for 20 hours. After cooling the mixture was added to water (500 ml) and extracted with diethyl ether (3×300 ml). The organic extracts were washed with brine (2×200 ml), dried (MgSO4), filtered and evaporated to dryness. Chromatography of the residue on silica gel in 2% methanol in dichloromethane afforded the title compound, which was used in the next stage without further purification.

Workup

  1. customAfter the vigorous reaction
  2. additionwas added
  3. temperatureAfter cooling the mixture
  4. extractionextracted with diethyl ether (3×300 ml)
  5. washThe organic extracts were washed with brine (2×200 ml)
  6. dry with materialdried (MgSO4)
  7. filtrationfiltered
  8. customevaporated to dryness

Sources & evidence

ORD record
ord-77295d3a59c1492983452a056585fdc2
Source dataset
uspto-grants-1993_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US05232925

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes