Water → 1-biphenyl-3-yl-5-[(4-methoxybenzyl)oxy]-2-methylpyridin-4(1H)-one

HRID 571069Notes

Reaction equation

HRID 571069 reaction equation
[C:1]1([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[CH:6]=[CH:5][CH:4]=[C:3]([N:7]2[CH:12]=[C:11]([OH:13])[C:10](=[O:14])[CH:9]=[C:8]2[CH3:15])[CH:2]=1.[CH3:22][O:23][C:24]1[CH:29]=[CH:28][C:27]([CH2:30]Cl)=[CH:26][CH:25]=1.C([O-])([O-])=O.[K+].[K+].O>CN(C=O)C>[C:1]1([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[CH:6]=[CH:5][CH:4]=[C:3]([N:7]2[CH:12]=[C:11]([O:13][CH2:30][C:27]3[CH:28]=[CH:29][C:24]([O:23][CH3:22])=[CH:25][CH:26]=3)[C:10](=[O:14])[CH:9]=[C:8]2[CH3:15])[CH:2]=1

Participants

6

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 699934-Methyloxybenzyl chlorideHCID 674185551-biphenyl-3-yl-5-hydroxy-2-methylpyridin-4(1H)-one

Product 1

HCID 674181761-biphenyl-3-yl-5-[(4-methoxybenzyl)oxy]-2-methylpyridin-4(1H)-one

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 4.8 g (17.4 mmol) 1-biphenyl-3-yl-5-hydroxy-2-methylpyridin-4(1H)-one in 150 ml of DMF was added 4.1 g (26.1 mmol) PMBCl, and 12.0 g (87.0 mmol) K2CO3. The reaction was stirred at rt for 2 h, after which time water was added and a precipitate formed. The solid was collected by filtration and purified by flash chromatography (100 g silica gel, 0-20% MeOH:EtOAc) to afford 1-biphenyl-3-yl-5-[(4-methoxybenzyl)oxy]-2-methylpyridin-4(1H)-one. 1H NMR δ (ppm) (DMSO-d6): 7.84 (1 H, d, J=7.86 Hz), 7.77 (2 H, d, J=7.71 Hz), 7.73 (1 H, s), 7.64 (1 H, t, J=7.84 Hz), 7.53-7.47 (3 H, m), 7.46-7.39 (2 H, m), 7.38-7.30 (3 H, m), 6.93 (2 H, d, J=8.32 Hz), 6.23 (1 H, s), 4.89 (2 H, s), 3.77-3.70 (3 H, m), 2.03 (3 H, s). LCMS (M+H)+=398.3.

Workup

  1. customa precipitate formed
  2. filtrationThe solid was collected by filtration
  3. custompurified by flash chromatography (100 g silica gel, 0-20% MeOH:EtOAc)

Sources & evidence

ORD record
ord-def41f3e191b446bba7fafb587e924a5
Source dataset
uspto-grants-2015_05
Patent number
US09024032B2

Reaction notes

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