Sodium Acetate → Dimethyl (2-aminopurin-9-ylmethyl)succinate

HRID 2256815Notes

Reaction equation

HRID 2256815 reaction equation
[NH2:1][C:2]1[N:10]=[C:9]2[C:5]([N:6]=[CH:7][N:8]2[CH2:11][CH:12]([CH2:17][C:18]([O:20][CH3:21])=[O:19])[C:13]([O:15][CH3:16])=[O:14])=[C:4](Cl)[N:3]=1.C([O-])(=O)C.[Na+]>[Pd].C(O)C>[NH2:1][C:2]1[N:10]=[C:9]2[C:5]([N:6]=[CH:7][N:8]2[CH2:11][CH:12]([CH2:17][C:18]([O:20][CH3:21])=[O:19])[C:13]([O:15][CH3:16])=[O:14])=[CH:4][N:3]=1

Participants

5

Reactant 2

HCID 517045Sodium AcetateHCID 19027590Dimethyl 2-(2-amino-6-chloropurin-9-ylmethyl)succinate

Product 1

HCID 19027589Dimethyl (2-aminopurin-9-ylmethyl)succinate

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 702EthanolSolvent

Procedure

A mixture of dimethyl 2-(2-amino-6-chloropurin-9-ylmethyl)succinate (3.28 g, 10 mmol), sodium acetate (1.5 g) and 5% palladium on charcoal (0.4 g) in ethanol (200 ml) was hydrogenated with agitation in a Parr apparatus at 40 psi for 115 h/room temperature. After filtration, sodium acetate (1.6 g) and 5% Pd/C (0.4 g) were added and the hydrogenation was continued for 70 h. After filtration and evaporation to dryness, the residue was extracted with 2×50 ml of chloroform and the combined extracts were evaporated to dryness affording 2.6 g (89%) of crude dechlorinated product.

Workup

  1. customroom temperature
  2. filtrationAfter filtration, sodium acetate (1.6 g) and 5% Pd/C (0.4 g)
  3. additionwere added
  4. waitthe hydrogenation was continued for 70 h
  5. filtrationAfter filtration and evaporation to dryness
  6. extractionthe residue was extracted with 2×50 ml of chloroform
  7. customthe combined extracts were evaporated to dryness
  8. customaffording 2.6 g (89%) of crude dechlorinated product

Sources & evidence

ORD record
ord-0981b696a47147ca9b71b9d2c15629df
Source dataset
uspto-grants-1997_08
Patent number
US05656617

Reaction notes

Loading…