Pentachloropyridine → 2,3,4,5-Tetrachloropyridine

HRID 2059330Notes

Reaction equation

Cl[C:2]1[N:7]=[C:6]([Cl:8])[C:5]([Cl:9])=[C:4]([Cl:10])[C:3]=1[Cl:11].[I-]>>[Cl:11][C:3]1[C:4]([Cl:10])=[C:5]([Cl:9])[C:6]([Cl:8])=[N:7][CH:2]=1

Participants

Reactant 2

HCID 16584Pentachloropyridine

HCID 30165Iodide Ion

Product 1

HCID 760512,3,4,5-Tetrachloropyridine

Procedure

The reaction of pentachloropyridine with a source of iodide ions and a proton donor in a solvent to form symmetrical tetrachloropyridine takes place in high yield and in a reasonable time period provided the reactants are heated sufficiently. The product is recovered by known techniques such as distillation.

Sources & evidence

ORD record: ord-ea9e3d4366fd406a9341e0bc35d1af83
Source dataset: uspto-grants-1982_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04322538

Reaction notes

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