Dimethylformamide → (3-Dimethoxymethyl-5-methyl-phenyl)-(5-isopropyl-2,6-dimethoxy-pyrimidin-4-yl)-methanone

HRID 426175Notes

Reaction equation

HRID 426175 reaction equation
[CH3:1][O:2][CH:3]([O:27][CH3:28])[C:4]1[CH:5]=[C:6]([CH:11]([C:14]2[C:19]([CH:20]([CH3:22])[CH3:21])=[C:18]([O:23][CH3:24])[N:17]=[C:16]([O:25][CH3:26])[N:15]=2)C#N)[CH:7]=[C:8]([CH3:10])[CH:9]=1.[H-].[Na+].CN(C=[O:35])C>>[CH3:1][O:2][CH:3]([O:27][CH3:28])[C:4]1[CH:5]=[C:6]([C:11]([C:14]2[C:19]([CH:20]([CH3:22])[CH3:21])=[C:18]([O:23][CH3:24])[N:17]=[C:16]([O:25][CH3:26])[N:15]=2)=[O:35])[CH:7]=[C:8]([CH3:10])[CH:9]=1

Participants

4

Reactant 3

HCID 6228DimethylformamideHCID 24758Sodium hydrideHCID 59184766(3-Dimethoxymethyl-5-methyl-phenyl)-(5-isopropyl-2,6-dimethoxy-pyrimidin-4-yl)-acetonitrile

Product 1

HCID 59184803(3-Dimethoxymethyl-5-methyl-phenyl)-(5-isopropyl-2,6-dimethoxy-pyrimidin-4-yl)-methanoneYield 98%

Procedure

To a stirred solution of (3-dimethoxymethyl-5-methyl-phenyl)-(5-isopropyl-2,6-dimethoxy-pyrimidin-4-yl)-acetonitrile (3.4 g, 8.8 mmol) in anhydrous DMF (36 ml) at room temperature under nitrogen atmosphere, was added 60% sodium hydride (0.423 g, 10.6 mmol). After 20 min., oxygen was bubbled into the mixture for 3 hr. The mixture was then partitioned between ether and water, The ether layer was taken, washed with water twice, dried with anhydrous magnesium sulfate, filtered, and evaporated in vacuo. The residue was purified by silica gel column chromatography (eluent, EA:hexanes (1:4)) to afford 3.26 g (98%) of a pale yellow solid. m.p. 86-88° C.; 1H NMR (300 MHz, CDCl3) δ 1.22 (6H, d, J=6.3 Hz), 2.41 (3H, s), 2.81 (1H, m), 3.31 (6H, s), 3.93 (3H, s), 4.06 (3H, s), 5.36 (1H, s), 7.53 (1H, s), 7.64 (1H, s), 7.71 (1H, s).

Workup

  1. customoxygen was bubbled into the mixture for 3 hr
  2. customThe mixture was then partitioned between ether and water
  3. washwashed with water twice
  4. dry with materialdried with anhydrous magnesium sulfate
  5. filtrationfiltered
  6. customevaporated in vacuo
  7. customThe residue was purified by silica gel column chromatography (eluent, EA:hexanes (1:4))

Sources & evidence

ORD record
ord-7fe29f77de364449ad613905361a3345
Source dataset
uspto-grants-2012_01
Patent number
US08106064B2

Reaction notes

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