1,3-Benzenedicarboxylic acid, 5-(2-phenylethynyl)-, potassium salt (1:2) → HCID 12080908, compound

HRID 498159Notes

Reaction equation

HRID 498159 reaction equation
[C:1]1([C:7]#[C:8][C:9]2[CH:10]=[C:11]([C:18]([O-:20])=[O:19])[CH:12]=[C:13]([CH:17]=2)[C:14]([O-:16])=[O:15])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[K+].[K+]>O>[C:1]1([C:7]#[C:8][C:9]2[CH:10]=[C:11]([C:18]([OH:20])=[O:19])[CH:12]=[C:13]([CH:17]=2)[C:14]([OH:16])=[O:15])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

Participants

3

Reactant 1

HCID 120809071,3-Benzenedicarboxylic acid, 5-(2-phenylethynyl)-, potassium salt (1:2)

Product 1

HCID 12080908HCID 12080908, compoundYield 99.5%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

Dipotassium 5-(2-phenylethynyl)isophthalate in an amount of 6.5 g (0.019 moles) was dissolved into 20 ml of ion-exchanged water and insoluble substances were removed by filtration with a 5C filter paper. To the obtained filtrate, a 5 moles/liter hydrochloric acid was added under stirring until the pH became 1. The formed solid substance was separated by filtration, washed with ion-exchanged water and filtered. The filtration and the washing were repeated twice. The obtained solid substance was dried at 50° C. under a reduced pressure and 5.0 g of 5-(2-phenylethynyl)isophthalic acid was obtained (the yield: 99.5%).

Workup

  1. customwere removed by filtration with a 5C
  2. filtrationfilter paper
  3. additionTo the obtained filtrate, a 5 moles/liter hydrochloric acid was added
  4. customThe formed solid substance was separated by filtration
  5. washwashed with ion-exchanged water
  6. filtrationfiltered
  7. filtrationThe filtration
  8. customThe obtained solid substance was dried at 50° C. under a reduced pressure

Sources & evidence

ORD record
ord-316b86237ff6478c8c843ade2c6feb46
Source dataset
uspto-grants-2005_09
Patent number
US06949674B2

Reaction notes

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