Water → HCID 22107244, compound

HRID 726763Notes

Reaction equation

HRID 726763 reaction equation
[CH:1]1([C:7]2[CH:22]=[CH:21][CH:20]=[CH:19][C:8]=2[O:9][C:10]2[CH:18]=[CH:17][CH:16]=[CH:15][C:11]=2C(O)=O)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[C:23](=[O:26])([O-])[O-].[Na+].[Na+].O>CO>[CH:1]1([C:7]2[C:8]3[O:9][C:10]4[C:11](=[CH:15][CH:16]=[CH:17][CH:18]=4)[C:23](=[O:26])[C:19]=3[CH:20]=[CH:21][CH:22]=2)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6]1

Participants

5

Reactant 3

HCID 962WaterHCID 10340Sodium CarbonateHCID 22107237HCID 22107237, compound

Product 1

HCID 22107244HCID 22107244, compoundYield 77%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A mixture of 18.4 g (65 mmol) of 2-(2-cyclohexylphenoxy)benzoic acid and 190 g of polyphosphoric acid is kept at 100° C. for 2 hours. The reaction mixture is then diluted with 200 ml of methanol, neutralized with sodium carbonate and poured onto about 800 ml of water. The product which has precipitated is filtered off, washed with water and dried under a high vacuum. 14.6 g (77% ) of 4-cyclohexylxanthone, melting point 122°-124° C., result as a beige powder.

Workup

  1. customThe product which has precipitated
  2. filtrationis filtered off
  3. washwashed with water
  4. customdried under a high vacuum

Sources & evidence

ORD record
ord-db7023e707bd4d0ab29bf56eda0b6ffb
Source dataset
uspto-grants-1998_01
Patent number
US05710198

Reaction notes

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