Benzoic Acid → 3,5-Dichloro-4-(3-benzoyloxypropyloxy)-1-(3,3-dichloro-2-propenyloxy)benzene

HRID 618397Notes

Reaction equation

HRID 618397 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([O:14][CH2:15][CH:16]=[C:17]([Cl:19])[Cl:18])[CH:5]=[C:6]([Cl:13])[C:7]=1[O:8][CH2:9][CH2:10][CH2:11]Br.[C:20]([OH:28])(=[O:27])[C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1.C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>O>[Cl:1][C:2]1[CH:3]=[C:4]([O:14][CH2:15][CH:16]=[C:17]([Cl:19])[Cl:18])[CH:5]=[C:6]([Cl:13])[C:7]=1[O:8][CH2:9][CH2:10][CH2:11][O:28][C:20](=[O:27])[C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1

Participants

6

Reactant 4

HCID 243Benzoic AcidHCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 108840691-[4-(3,3-Dichloroprop-2-enyloxy)-2,6-dichlorophenoxy]-3-bromopropane

Product 1

HCID 184300283,5-Dichloro-4-(3-benzoyloxypropyloxy)-1-(3,3-dichloro-2-propenyloxy)benzeneYield 95.1%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A reaction vessel was charged with 11.1 g of 3,5-dichloro-4-(3-bromopropoxy)-1-(3,3-dichloro-2-propenyloxy)benzene, 3.31 g of benzoic acid, 3.90 g of potassium carbonate and 50 ml of N,N-dimethylformamide. After stirring at room temperature for 24 hours, the reaction mixture was poured into water and extracted twice with 150 ml of diethyl ether. The ether layers were combined, and washed with water, dried over anhydrous magnesium chloride, and then concentrated to give a crude product. The crude product was subjected to silica gel chromatography, which afforded 11.6 g of 3,5-dichloro-4-(3-benzoyloxypropyloxy)-1-(3,3-dichloro-2-propenyloxy)benzene (95% yield).

Workup

  1. extractionextracted twice with 150 ml of diethyl ether
  2. washwashed with water
  3. dry with materialdried over anhydrous magnesium chloride
  4. concentrationconcentrated
  5. customto give a crude product

Sources & evidence

ORD record
ord-7c770406fc484c518d8728da5be6294a
Source dataset
uspto-grants-1999_09
Patent number
US05952386

Reaction notes

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