HCID 22051118, compound → HCID 22050258, compound

HRID 1831889Notes

Reaction equation

HRID 1831889 reaction equation
[CH2:1]([N:8]1[CH:13]=[CH:12][C:11]([O:14][CH2:15][C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)=[C:10]([CH:22]=[CH2:23])[C:9]1=[O:24])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[H][H]>CCO.CCOC(C)=O.[Pd]>[CH2:1]([N:8]1[CH:13]=[CH:12][C:11]([O:14][CH2:15][C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)=[C:10]([CH2:22][CH3:23])[C:9]1=[O:24])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 2

HCID 22051118HCID 22051118, compoundHCID 178418361HCID 178418361, compound

Product 1

HCID 22050258HCID 22050258, compoundYield 64%

Reagents, catalysts & solvents 3

HCID 23938PalladiumCatalystHCID 702EthanolSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 1-benzyl-4-(benzyloxy)-3-vinylpyridin-2(1H)-one (0.5 g, 1.6 mmol) in EtOH (10.0 mL) and EtOAc (10.0 mL) was added Pd/C (10%, 0.25 g) and stirred in an atmosphere of hydrogen gas at 30 psi for 16 h. The catalyst was removed by filtration, the filtrate was concentrated to dryness and the resulting residue was purified by silica gel flash chromatography using EtOAc/hexanes (1:1, v/v) to afford the title compound (0.32 g, 64%) as a pale yellow powder: 1H-NMR (CD3OD) δ: 7.52 (d, 1H, J=7.6 Hz), 7.39-7.2 (m, 10H), 6.41 (d, 1 h, J=7.6 Hz), 5.18 (s, 2H), 5.15 (s, 2H), 2.58 (q, 2H, J=7.2 Hz), 1.03 (t, 3H, J=7.2 Hz), ER-MS m/z=320 (MH+) HR-MS m/z calcd C21H22NO2 320.1651, found 320.1648.

Workup

  1. customThe catalyst was removed by filtration
  2. concentrationthe filtrate was concentrated to dryness
  3. customthe resulting residue was purified by silica gel flash chromatography

Sources & evidence

ORD record
ord-7d1152b632d24e478d28db56ca274e8f
Source dataset
uspto-grants-2006_06
Patent number
US07067540B2

Reaction notes

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