Thionyl Chloride → 2-(Benzyloxy)-5-(chloromethyl)pyridine

HRID 640485Notes

Reaction equation

HRID 640485 reaction equation
[CH2:1]([O:8][C:9]1[N:14]=[CH:13][C:12]([CH2:15]O)=[CH:11][CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.S(Cl)([Cl:19])=O.C(=O)(O)[O-].[Na+]>ClCCl>[CH2:1]([O:8][C:9]1[CH:10]=[CH:11][C:12]([CH2:15][Cl:19])=[CH:13][N:14]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 24386Thionyl ChlorideHCID 516892Sodium BicarbonateHCID 59255139(6-(Benzyloxy)pyridin-3-yl)methanol

Product 1

HCID 220096002-(Benzyloxy)-5-(chloromethyl)pyridineYield 87%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a dichloromethane (4.00 mL) solution of (6-benzyloxy-pyridin-3-yl)-methanol (1.80 g, 8.36 mmol) described in Manufacturing Example 191-1-1 was added dropwise thionyl chloride (732 μL, 10.0 mmol) on an ice bath (0° C.) under nitrogen atmosphere, which was stirred for 5 minutes at room temperature. Aqueous sodium bicarbonate was added to the reaction solution, which was extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride and dried over anhydrous magnesium sulfate, and the solvent was evaporated under a reduced pressure to obtain the title compound (1.70 g, 87.0%).

Workup

  1. extractionwas extracted with ethyl acetate
  2. washThe organic layer was washed with saturated aqueous sodium chloride
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customthe solvent was evaporated under a reduced pressure

Sources & evidence

ORD record
ord-020d956a42164c8e841f19fa8edddb10
Source dataset
uspto-grants-2010_04
Patent number
US07691882B2

Reaction notes

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