Phosphorus oxychloride → HCID 86698900, compound

HRID 2174478Notes

Reaction equation

HRID 2174478 reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([O:13][CH2:14][CH2:15][N:16]2[CH2:21][CH2:20][CH2:19][CH2:18][CH2:17]2)=[C:6]2[C:11]=1[NH:10][C:9](=O)[CH:8]=[CH:7]2.O=P(Cl)(Cl)[Cl:24].[Cl-].C([NH+](CC)CC)C>C(#N)C>[Cl:24][C:9]1[CH:8]=[CH:7][C:6]2[C:11](=[C:2]([Cl:1])[CH:3]=[CH:4][C:5]=2[O:13][CH2:14][CH2:15][N:16]2[CH2:21][CH2:20][CH2:19][CH2:18][CH2:17]2)[N:10]=1

Participants

5

Reactant 3

HCID 24813Phosphorus oxychlorideHCID 12698378Triethylazanium chlorideHCID 67977592HCID 67977592, compound

Product 1

HCID 86698900HCID 86698900, compoundYield 100%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Conditions

Temperature
120 °C

Procedure

8-chloro-5-(2-(piperidin-1-yl)ethoxy)quinolin-2(1H)-one (275 mg, 0.9 mmol, 1 eq.) was placed in acetonitrile (2.3 mL) in the presence of POCl3 (418 μL, 4.5 mmol, 5 eq.) and triethylammonium chloride (1 g, 4.5 mmol, 5 eq.). The reaction mixture was stirred at 120° C. during 3 hours. The mixture was then concentrated under reduced pressure and, after adding water to the residue (5 mL), was stirred at room temperature during 30 minutes. Then the resulting precipitate was washed with water and filtered to give 2,8-dichloro-5-(2-(piperidin-1-yl)ethoxy)quinoline (228 mg, 100%).

Workup

  1. concentrationThe mixture was then concentrated under reduced pressure
  2. additionafter adding water to the residue (5 mL)
  3. stirringwas stirred at room temperature during 30 minutes
  4. washThen the resulting precipitate was washed with water
  5. filtrationfiltered

Sources & evidence

ORD record
ord-d1cffd39606d408eb8824885eac0bf71
Source dataset
uspto-grants-2015_06
Patent number
US09061999B2

Reaction notes

Loading…