1,8-Diazabicyclo(5.4.0)undec-7-ene → 4-(Phthalimidomethyloxy)pyridine

HRID 274670

Reaction equation

HRID 274670 reaction equation
[OH:1][C:2]1[CH:7]=[CH:6][N:5]=[CH:4][CH:3]=1.Cl[CH2:9][N:10]1[C:14](=[O:15])[C:13]2=[CH:16][CH:17]=[CH:18][CH:19]=[C:12]2[C:11]1=[O:20].C1CCN2C(=NCCC2)CC1>COCCOC>[C:11]1(=[O:20])[N:10]([CH2:9][O:1][C:2]2[CH:7]=[CH:6][N:5]=[CH:4][CH:3]=2)[C:14](=[O:15])[C:13]2=[CH:16][CH:17]=[CH:18][CH:19]=[C:12]12

Participants

5

Reactant 3

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 87154ChloromethylphthalimideHCID 178418642HCID 178418642, compound

Product 1

HCID 190791054-(Phthalimidomethyloxy)pyridineYield 21%

Reagents, catalysts & solvents 1

HCID 80711,2-DimethoxyethaneSolvent

Procedure

To a solution of 4.76 g (50 mmol) of 4-hydroxypyridine and 10.76 g (55 mmol) of N-chloromethylphthalimide in 80 ml of DME, 8.23 ml (55 mmol) of 1,8-diazabicyclo[5,4,0]-7-undecene was added. The mixture was stirred at room temperature for 2 hours. After the solvent was distilled off, the reaction mixture was poured into water and extracted with ethyl acetate. The precipitate was filtered off. The aqueous layer was further extracted with ethyl acetate. The organic layer was washed with water and dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. The residue was purified by column chromatography (eluent: ethyl acetate) to obtain 2.67 g of the desired compound (yield: 21%, colorless crystals).

Workup

  1. distillationAfter the solvent was distilled off
  2. additionthe reaction mixture was poured into water
  3. extractionextracted with ethyl acetate
  4. filtrationThe precipitate was filtered off
  5. extractionThe aqueous layer was further extracted with ethyl acetate
  6. washThe organic layer was washed with water
  7. dry with materialdried over anhydrous magnesium sulfate
  8. distillationthe solvent was distilled off under reduced pressure
  9. customThe residue was purified by column chromatography (eluent: ethyl acetate)

Sources & evidence

ORD record
ord-a5746cad3c7d4189b20bf58111b929bf
Source dataset
uspto-grants-1995_02
Patent number
US05389658

Linked notes

Loading…