Chloroform → Hydrochloric Acid

HRID 582942

Reaction equation

HRID 582942 reaction equation
CC1C=C(N[C:10](=[O:19])CC2C=CC(O)=CC=2)C=C(C)C=1.[OH-:20].[Na+].[C:22]1(=O)[CH2:27][CH2:26][CH2:25][CH2:24][CH2:23]1.C(Cl)(Cl)[Cl:30]>C1COCC1>[ClH:30].[CH:22]1([C:10]([OH:19])=[O:20])[CH2:27][CH2:26][CH2:25][CH2:24][CH2:23]1

Participants

7

Reactant 4

HCID 6212ChloroformHCID 7967CyclohexanoneHCID 14798Sodium HydroxideHCID 2763537N-(3,5-dimethylphenyl)-2-(4-hydroxyphenyl)acetamide

Product 2

HCID 313Hydrochloric AcidHCID 7413Cyclohexanecarboxylic acid

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

N-(3,5-dimethylphenyl)-4-hydroxyphenylacetamide (3.06 gms, 12 mmol) in THF is treated with 2.4 gms (60 mmol) of NaOH at -20° C. Subsequently 5.889 gms (60 mmol) of cyclohexanone and 4.8 ml (60 mmol) of CHCl3 is added dropwise simultaneously at -20° C. and stirred overnight at room temperature. THF is removed under vacuum and the residue is dissolved in water, followed by acidification with 35% HCl. The precipitated solid is extracted into ether and treated with 6% sodium bicarbonate solution. The aqueous layer on acidification with HCl yields the product 1-[4-(((3,5-dimethylphenyl)amino)carbonyl) methyl)phenoxy] cyclohexanecarboxylic acid (C23H27NO4) The product was purified by repeated extraction into ether and NaHCO3.

Workup

  1. customTHF is removed under vacuum
  2. dissolutionthe residue is dissolved in water
  3. extractionThe precipitated solid is extracted into ether
  4. additiontreated with 6% sodium bicarbonate solution

Sources & evidence

ORD record
ord-6d4b01de7f3b4527b893822d340f4efc
Source dataset
uspto-grants-1999_07
Patent number
US05927283

Linked notes

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