Ammonia → HCID 67228863, compound

HRID 885168Notes

Reaction equation

HRID 885168 reaction equation
C[O:2][C:3](=O)[C@@H:4]([NH:15]C(OCC1C=CC=CC=1)=O)[CH2:5][O:6][CH:7]([C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1)[CH3:8].N>CO.[Pd]>[NH2:15][C@@H:4]([CH2:5][O:6][CH:7]([C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1)[CH3:8])[CH2:3][OH:2]

Participants

5

Reactant 2

HCID 222AmmoniaHCID 67177433HCID 67177433, compound

Product 1

HCID 67228863HCID 67228863, compoundYield 86%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 887MethanolSolvent2×

Procedure

To a solution of (S)-2-benzyloxycarbonylamino-3-(1-phenyl-ethoxy)-propionic acid methyl ester (1.1 g) in methanol (5 ml) were added ammonia in methanol (7 N solution, 0.22 ml) and palladium on charcoal (5%, 110 mg). The mixture was stirred vigorously under an atmosphere of hydrogen for 30 min. The catalyst was filtered off and the filtrate was evaporated. The crude product was purified by column chromatography (SiO2; dichloromethane/MeOH=98:2) to give (R)-2-amino-3-(1-phenyl-ethoxy)-propan-1-ol (280 mg, 86%) as a light yellow liquid. MS (ISP): 224.2 ([M+H]+)).

Workup

  1. filtrationThe catalyst was filtered off
  2. customthe filtrate was evaporated
  3. customThe crude product was purified by column chromatography (SiO2; dichloromethane/MeOH=98:2)

Sources & evidence

ORD record
ord-a08a81f6e77a400b8881afefd8a97e50
Source dataset
uspto-grants-2012_08
Patent number
US08242153B2

Reaction notes

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