Imidazole → 5-(Tert-butyldimethylsilanyloxymethyl)-pyridine-2-carbonitrile

HRID 589923Notes

Reaction equation

HRID 589923 reaction equation
[OH:1][CH2:2][C:3]1[CH:4]=[CH:5][C:6]([C:9]#[N:10])=[N:7][CH:8]=1.[C:11]([Si:15]([CH3:18])([CH3:17])Cl)([CH3:14])([CH3:13])[CH3:12].N1C=CN=C1.O>CN(C)C=O>[Si:15]([O:1][CH2:2][C:3]1[CH:4]=[CH:5][C:6]([C:9]#[N:10])=[N:7][CH:8]=1)([C:11]([CH3:14])([CH3:13])[CH3:12])([CH3:18])[CH3:17]

Participants

6

Reactant 4

HCID 795ImidazoleHCID 962WaterHCID 28928tert-Butyldimethylsilyl chlorideHCID 122519662-Cyano-5-hydroxymethylpyridine

Product 1

HCID 542127655-(Tert-butyldimethylsilanyloxymethyl)-pyridine-2-carbonitrileYield 84.8%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

5-(Hydroxymethyl)pyridine-2-carbonitrile (258 mg) was dissolved in dimethylformamide (8 ml), tert-butyl dimethylchlorosilane (347 mg) and imidazole (326 mg) were added, and the mixture was stirred at room temperature for 1 hr. Water (20 ml) was added and the mixture was stirred, extracted with ethyl acetate (once with 50 ml and once with 20 ml), washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated and the obtained residue was purified by column chromatography (Yamazen HI-FLASH™ COLUMN size 2 L, elution solvent: hexane/ethyl acetate) to give the title compound (405 mg).

Workup

  1. stirringthe mixture was stirred
  2. extractionextracted with ethyl acetate (once with 50 ml
  3. washonce with 20 ml), washed with saturated brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. customThe solvent was evaporated
  6. customthe obtained residue was purified by column chromatography (Yamazen HI-FLASH™ COLUMN size 2 L, elution solvent: hexane/ethyl acetate)

Sources & evidence

ORD record
ord-b8e567069b084f3cbf989f57db8a5f74
Source dataset
uspto-grants-2016_01
Patent number
US09233969B2

Reaction notes

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