Phosphorus pentachloride → HCID 10448313, compound

HRID 1607672Notes

Reaction equation

HRID 1607672 reaction equation
[F:1][C:2]1[CH:20]=[C:19]([F:21])[CH:18]=[CH:17][C:3]=1[O:4][C:5]1[CH:6]=[C:7]([CH:11]=[CH:12][C:13]=1[N+:14]([O-:16])=[O:15])[C:8](O)=[O:9].P(Cl)(Cl)(Cl)(Cl)[Cl:23]>C1C=CC=CC=1>[F:1][C:2]1[CH:20]=[C:19]([F:21])[CH:18]=[CH:17][C:3]=1[O:4][C:5]1[CH:6]=[C:7]([CH:11]=[CH:12][C:13]=1[N+:14]([O-:16])=[O:15])[C:8]([Cl:23])=[O:9]

Participants

4

Reactant 2

HCID 24819Phosphorus pentachlorideHCID 10402218HCID 10402218, compound

Product 1

HCID 10448313HCID 10448313, compoundYield 98.6%

Reagents, catalysts & solvents 1

HCID 241BenzeneSolvent

Procedure

A mixture of 3-(2,4-difluorophenoxy)-4-nitrobenzoic acid (2.1 g) and phosphorus pentachloride (1.6 g) in benzene (20 ml) was stirred for 2 hours at room temperature. The mixture was concentrated under reduced pressure to give crystals of 3-(2,4-difluorophenoxy)-4-nitrobenzoyl chloride (2.2 g). A solution of 3-(2,4-difluorophenoxy)-4-nitrobenzoyl chloride (2.2 g) in benzene (20 ml) was added to a mixture of aluminum chloride (2.4 g) in benzene (20 ml). The mixture was stirred overnight at ambient temperature and concentrated under reduced pressure. The residue was dissolved in chloroform, washed with diluted hydrochloric acid and water successively, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was recrystallized from a mixture of hexane and ethanol to give crystals of 3-(2,4-difluorophenoxy)-4-nitrobenzophenone (2.3 g).

Workup

  1. concentrationThe mixture was concentrated under reduced pressure

Sources & evidence

ORD record
ord-f9935a0883674583b7459923a47ad3f8
Source dataset
uspto-grants-1989_09
Patent number
US04866091

Reaction notes

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