Hydrochloric Acid → 3-(5-Isopropyl-2,6-dimethoxy-pyrimidine-4-carbonyl)-5-methyl-benzaldehyde

HRID 426176Notes

Reaction equation

HRID 426176 reaction equation
C[O:2][CH:3](OC)[C:4]1[CH:5]=[C:6]([C:11]([C:13]2[C:18]([CH:19]([CH3:21])[CH3:20])=[C:17]([O:22][CH3:23])[N:16]=[C:15]([O:24][CH3:25])[N:14]=2)=[O:12])[CH:7]=[C:8]([CH3:10])[CH:9]=1.Cl>C(Cl)(Cl)Cl.CO>[CH:19]([C:18]1[C:13]([C:11]([C:6]2[CH:5]=[C:4]([CH:9]=[C:8]([CH3:10])[CH:7]=2)[CH:3]=[O:2])=[O:12])=[N:14][C:15]([O:24][CH3:25])=[N:16][C:17]=1[O:22][CH3:23])([CH3:21])[CH3:20]

Participants

5

Reactant 2

HCID 313Hydrochloric AcidHCID 59184803(3-Dimethoxymethyl-5-methyl-phenyl)-(5-isopropyl-2,6-dimethoxy-pyrimidin-4-yl)-methanone

Product 1

HCID 591848613-(5-Isopropyl-2,6-dimethoxy-pyrimidine-4-carbonyl)-5-methyl-benzaldehydeYield 84%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 6212ChloroformSolvent

Procedure

To a stirred solution of (3-dimethoxymethyl-5-methyl-phenyl)-(5-isopropyl-2,6-dimethoxy-pyrimidin-4-yl)-methanone (3.13 g, 8.36 mmol) in chloroform (30 ml) at room temperature, was added hydrogen chloride in methanol solution [prepared from methanol (30 ml) and acetyl chloride (4 ml)]. After stirring for 2 hr., the mixture was evaporated in vacuo. The residue was dissolved in ether, washed with aqueous saturated sodium bicarbonate solution, dried with anhydrous magnesium sulfate, filtered, and evaporated in vacuo. The residue was purified by silica gel column chromatography (eluent, i) MC, ii) MC:EA (9:1)) to afford 2.3 g (84%) of a white solid. m.p. 111-113° C.; 1H NMR (300 MHz, CDCl3) δ 1.20 (6H, d, J=7.2 Hz), 2.50 (3H, s), 2.85 (1H, m), 3.93 (3H, s), 4.08 (3H, s), 7.94 (1H, s), 7.99 (1H, s), 8.08 (1H, s), 10.02 (1H, s).

Workup

  1. custom, the mixture was evaporated in vacuo
  2. dissolutionThe residue was dissolved in ether
  3. washwashed with aqueous saturated sodium bicarbonate solution
  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, i) MC, ii) MC

Sources & evidence

ORD record
ord-4a73cc4c04c0445d875efba507738d51
Source dataset
uspto-grants-2012_01
Patent number
US08106064B2

Reaction notes

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