Aluminum(III) Chloride → HCID 178514851, compound

HRID 1586294Notes

Reaction equation

HRID 1586294 reaction equation
C[O:2][C:3]1[C:4](=[O:18])[C:5]2[C:13](=[CH:14][C:15]=1[O:16]C)[C:12]1[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=1)[CH:6]=2.[Cl-].[Al+3].[Cl-].[Cl-]>C1(C)C=CC=CC=1>[OH:2][C:3]1[C:4](=[O:18])[C:5]2[C:13](=[CH:14][C:15]=1[OH:16])[C:12]1[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=1)[CH:6]=2

Participants

4

Reactant 2

HCID 6451240Aluminum(III) ChlorideHCID 67583030HCID 67583030, compound

Product 1

HCID 178514851HCID 178514851, compoundYield 74%

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Conditions

Temperature
90 °C

Procedure

2,3-Dimethoxyfluorenone (15 g) was dissolved in toluene (300 ml), to which was added anhydrous aluminum chloride (20 g) and the mixture was stirred at 90° C. for 2 hours. After cooling, the reaction solution was poured into ice water (1.5 liter). Then, the insoluble matter formed was filtered, washed with water, dried and recrystallized from ethyl acetate to give 9.8 g of 2,3-dihydroxyfluorenone as a yellow needle-like crystal.

Workup

  1. temperatureAfter cooling
  2. customThen, the insoluble matter formed
  3. filtrationwas filtered
  4. washwashed with water
  5. customdried
  6. customrecrystallized from ethyl acetate

Sources & evidence

ORD record
ord-1f191d2d157d431884ff22e608753439
Source dataset
uspto-grants-1999_08
Patent number
US05942641

Reaction notes

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