N-Formylmorpholine → 4-(Phenoxymethyl)benzaldehyde

HRID 1891766Notes

Reaction equation

HRID 1891766 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([CH2:8][O:9][C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)=[CH:4][CH:3]=1.C([Li])CCC.[CH:21](N1CCOCC1)=[O:22]>O1CCCC1>[O:9]([CH2:8][C:5]1[CH:6]=[CH:7][C:2]([CH:21]=[O:22])=[CH:3][CH:4]=1)[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1

Participants

5

Reactant 3

HCID 20417N-FormylmorpholineHCID 7261491-Bromo-4-(phenoxymethyl)benzeneHCID 178418339Butyllithium

Product 1

HCID 121062874-(Phenoxymethyl)benzaldehydeYield 100.6%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Conditions

Temperature
-78 °C

Procedure

To a tetrahydrofuran solution (50 mL) of 1-bromo4-phenoxymethyl-benzene (4.69 g, 17.8 mmol) described in Manufacturing Example 86-1-1 was added dropwise n-butyl lithium (16.8 mL, 1.59 M hexane solution, 26.7 mmol) at −78° C. After 40 minutes of stirring at −78° C., N-formylmorpholine (2.25 g, 19.6 mmol) was added to this mixture, which was then stirred for a further 30 minutes at that temperature. This mixture was partitioned into diethyl ether and water. The organic layer was separated, washed with saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under a reduced pressure to obtain the title compound (3.8 g). This compound was used in the subsequent reaction without purification.

Workup

  1. stirringwas then stirred for a further 30 minutes at that temperature
  2. customThis mixture was partitioned into diethyl ether and water
  3. customThe organic layer was separated
  4. washwashed with saturated aqueous sodium chloride
  5. dry with materialdried over anhydrous magnesium sulfate
  6. filtrationfiltered
  7. concentrationThe filtrate was concentrated under a reduced pressure

Sources & evidence

ORD record
ord-7c84bbdcfa984aecbb6a7b4686d61084
Source dataset
uspto-grants-2013_08
Patent number
US08507530B2

Reaction notes

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