Phosphorus pentachloride → 2,6,7-Trichloroquinoxaline

HRID 2198497Notes

Reaction equation

HRID 2198497 reaction equation
P(Cl)(Cl)(Cl)(Cl)[Cl:2].[Cl:7][C:8]1[CH:9]=[C:10]2[C:15](=[CH:16][C:17]=1[Cl:18])[N:14]=[C:13](O)[CH:12]=[N:11]2>P(Cl)(Cl)(Cl)=O>[Cl:2][C:13]1[CH:12]=[N:11][C:10]2[C:15](=[CH:16][C:17]([Cl:18])=[C:8]([Cl:7])[CH:9]=2)[N:14]=1

Participants

4

Reactant 2

HCID 24819Phosphorus pentachlorideHCID 178516725HCID 178516725, compound

Product 1

HCID 100369782,6,7-Trichloroquinoxaline

Reagents, catalysts & solvents 1

HCID 24813Phosphorus oxychlorideSolvent

Procedure

Phosphorus oxychloride (50 ml) and phosphorus pentachloride (10 g) were added to 6,7-dichloro-2-hydroxyquinoxaline (6.6 g) and the mixture was stirred for a period of 1 hour. The mixture was then poured onto ice and the precipitate collected by filtration to give 2,6,7-trichloroquinoxaline, mp 137° C.

Workup

  1. additionThe mixture was then poured onto ice
  2. filtrationthe precipitate collected by filtration

Sources & evidence

ORD record
ord-38a552604b5b4cbb848667768b8a9fdb
Source dataset
uspto-grants-1982_11
Patent number
US04358307

Reaction notes

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