HCID 85521166, compound → 7H-Benzo(c)fluorene

HRID 2399818Notes

Reaction equation

HRID 2399818 reaction equation
[C:1]1(=O)[C:17]2[C:5]([CH:6]=[CH:7][C:8]3[C:16]=2[C:15]2[CH:14]=[CH:13][CH:12]=[CH:11][C:10]=2[CH:9]=3)=[CH:4][CH:3]=[CH:2]1>O1CCCC1.[C].[Pd].[Pd]>[CH2:9]1[C:10]2[C:15](=[CH:14][CH:13]=[CH:12][CH:11]=2)[C:16]2[C:17]3[C:5]([CH:6]=[CH:7][C:8]1=2)=[CH:4][CH:3]=[CH:2][CH:1]=3

Participants

5

Reactant 1

HCID 85521166HCID 85521166, compound

Product 1

HCID 91507H-Benzo(c)fluorene

Reagents, catalysts & solvents 3

HCID 23938PalladiumCatalystHCID 178418390HCID 178418390, compoundCatalystHCID 8028TetrahydrofuranSolvent

Procedure

9.8 grams of the benzo(c) flurenone were dissolved in 200 ml of terahydrofuran and hydrogenated in the presence of 0.5 g of a palladium carbon catalyst containing 10 wt % palladium under atmospheric pressure and room temperature. The resulting product was dried over Na2SO4, the solvent removed and the residue extracted with pentane and filtered over silica gel. Colorless platelettes of 3,4-benzofluorene, also sometimes referred to as benzo(c) fluorene, were recovered.

Workup

  1. dry with materialThe resulting product was dried over Na2SO4
  2. customthe solvent removed
  3. extractionthe residue extracted with pentane
  4. filtrationfiltered over silica gel
  5. customwere recovered

Sources & evidence

ORD record
ord-7f7bfeda6c5d4a16ad653616098ab8e0
Source dataset
uspto-grants-1995_09
Patent number
US05451649

Reaction notes

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