Thionyl Chloride → 2-(Chloromethyl)-6-methylpyridine

HRID 640102Notes

Reaction equation

HRID 640102 reaction equation
[CH3:1][C:2]1[N:7]=[C:6]([CH2:8]O)[CH:5]=[CH:4][CH:3]=1.S(Cl)([Cl:12])=O>C(Cl)Cl>[Cl:12][CH2:8][C:6]1[CH:5]=[CH:4][CH:3]=[C:2]([CH3:1])[N:7]=1

Participants

4

Reactant 2

HCID 24386Thionyl ChlorideHCID 707366-Methyl-2-pyridylmethanol

Product 1

HCID 765462-(Chloromethyl)-6-methylpyridineYield 85.8%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A solution of (6-methyl-pyridin-2-yl)-methanol (1.44 g, 11.7 mmol), thionyl chloride (1.45 mL, 19.9 mmol) and methylene chloride (20 mL) was stirred under reflux for 40 minutes. The reaction solution was cooled to room temperature and then concentrated under a reduced pressure. The residue was partitioned into sodium bicarbonate solution and diethyl ether. The organic layer was concentrated under a reduced pressure, and the residue was purified by silica gel chromatography (ethyl acetate) to obtain the title compound (1.42 g, 85.8%).

Workup

  1. temperatureunder reflux for 40 minutes
  2. concentrationconcentrated under a reduced pressure
  3. customThe residue was partitioned into sodium bicarbonate solution and diethyl ether
  4. concentrationThe organic layer was concentrated under a reduced pressure
  5. customthe residue was purified by silica gel chromatography (ethyl acetate)

Sources & evidence

ORD record
ord-f9319b55d9e0414ba69ea121f0c418dd
Source dataset
uspto-grants-2010_04
Patent number
US07691882B2

Reaction notes

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