Dimethylformamide → HCID 59686859, compound

HRID 1804693Notes

Reaction equation

HRID 1804693 reaction equation
[CH2:1]([O:8][C:9]1[N:14]=[C:13]([CH:15](C#N)[C:16]2[CH:17]=[C:18]([CH:21]=[C:22]([CH3:24])[CH:23]=2)[C:19]#[N:20])[C:12]([CH:27]([CH3:29])[CH3:28])=[C:11]([O:30][CH2:31][C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[N:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[H-].[Na+].CN(C=[O:44])C>>[CH2:1]([O:8][C:9]1[N:14]=[C:13]([C:15]([C:16]2[CH:17]=[C:18]([CH:21]=[C:22]([CH3:24])[CH:23]=2)[C:19]#[N:20])=[O:44])[C:12]([CH:27]([CH3:29])[CH3:28])=[C:11]([O:30][CH2:31][C:32]2[CH:33]=[CH:34][CH:35]=[CH:36][CH:37]=2)[N:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

4

Reactant 3

HCID 6228DimethylformamideHCID 24758Sodium hydrideHCID 59686842HCID 59686842, compound

Product 1

HCID 59686859HCID 59686859, compoundYield 88%

Procedure

To a stirred solution of 3-((2,6-bis(benzyloxy)-5-isopropylpyrimidin-4-yl)(cyano)methyl)-5-methylbenzonitrile (53.46 g, 0.0195 M) in anhydrous DMF (400 mL) in a water bath under nitrogen atmosphere, was added 60% sodium hydride (4.87 g, 0.1205 M) portionwise. After 30 min., oxygen gas was bubbled into the reaction mixture using oxygen balloon. After 3 hr., sat. aqueous ammonium chloride solution was added and the product was extracted with ether. Ether layer was washed with water twice, dried with anhydrous magnesium sulfate, filtered, and evaporated in vacuo to give a crude product as a light yellow solid. The crude product was purified by silica gel column chromatography (eluent, ethyl acetate:hexane (1:9)) to afford 45.7 g (88%) of 3-(2,6-bis(benzyloxy)-5-isopropylpyrimidine-4-carbonyl)-5-methylbenzonitrile as a light yellow solid. m.p. 129-130° C. 1H NMR (300 MHz, CDCl3) δ 1.20 (3H, d, J=7.0 Hz), 1.22 (3H, d, J=7.0 Hz), 2.43 (3H, s), 2.84 (1H, m), 5.34 (2H, s), 5.51 (2H, s), 7.29-7.46 (10H, m), 7.66 (1H, s), 7.83 (1H, s), 7.90 (1H, s).

Workup

  1. customoxygen gas was bubbled into the reaction mixture
  2. waitAfter 3 hr
  3. addition, sat. aqueous ammonium chloride solution was added
  4. extractionthe product was extracted with ether
  5. washEther layer was washed with water twice
  6. dry with materialdried with anhydrous magnesium sulfate
  7. filtrationfiltered
  8. customevaporated in vacuo
  9. customto give a crude product as a light yellow solid
  10. customThe crude product was purified by silica gel column chromatography (eluent, ethyl acetate:hexane (1:9))

Sources & evidence

ORD record
ord-8c00530990c54134a5521946a193490a
Source dataset
uspto-grants-2013_01
Patent number
US08354421B2

Reaction notes

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