Thionyl Chloride → Pyridine, 3-(chloromethyl)-2-(1-(1-methylethyl)-1H-pyrazol-5-yl)-, hydrochloride (1:2)

HRID 1770790Notes

Reaction equation

HRID 1770790 reaction equation
[CH:1]([N:4]1[C:8]([C:9]2[C:14]([CH2:15]O)=[CH:13][CH:12]=[CH:11][N:10]=2)=[CH:7][CH:6]=[N:5]1)([CH3:3])[CH3:2].O=S(Cl)[Cl:19]>C(Cl)Cl>[ClH:19].[Cl:19][CH2:15][C:14]1[C:9]([C:8]2[N:4]([CH:1]([CH3:3])[CH3:2])[N:5]=[CH:6][CH:7]=2)=[N:10][CH:11]=[CH:12][CH:13]=1

Participants

4

Reactant 2

HCID 24386Thionyl ChlorideHCID 896547582-(1-(1-Methylethyl)-1H-pyrazol-5-yl)-3-pyridinemethanol

Product 1

HCID 86690720Pyridine, 3-(chloromethyl)-2-(1-(1-methylethyl)-1H-pyrazol-5-yl)-, hydrochloride (1:2)

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of (2-(1-isopropyl-1H-pyrazol-5-yl)pyridin-3-yl)methanol) (440 mg, 2.02 mmol) in DCM (4 mL) was added SOCl2 (2 eq) at 0° C. The reaction mixture was stirred at RT for 15 mins and concentrated to dryness. The crude solid was suspended in toluene and concentrated to dryness. The process was repeated three times and dried under vacuum to give 3-(chloromethyl)-2-(1-isopropyl-1H-pyrazol-5-yl)pyridine hydrochloride (432 mg) as an off-white solid, which was used for next step without further purification. MS (ESI) m/z 236.5 [M+H]+.

Workup

  1. concentrationconcentrated to dryness
  2. concentrationconcentrated to dryness
  3. customdried under vacuum

Sources & evidence

ORD record
ord-351fc19a43814c71b9a880cc434d5144
Source dataset
uspto-grants-2016_02
Patent number
US09248199B2

Reaction notes

Loading…