HCID 22471914, compound → HCID 22117972, compound

HRID 842472Notes

Reaction equation

HRID 842472 reaction equation
Br[C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[CH:4]=[C:5]([CH3:11])[CH2:6]2.[F:12][C:13]([F:27])([F:26])[C:14]1[CH:15]=[C:16]([Mg]Br)[CH:17]=[C:18]([C:20]([F:23])([F:22])[F:21])[CH:19]=1>CCOCC.Cl[Ni](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[F:12][C:13]([F:26])([F:27])[C:14]1[CH:15]=[C:16]([C:2]2[CH:10]=[CH:9][CH:8]=[C:7]3[C:3]=2[CH:4]=[C:5]([CH3:11])[CH2:6]3)[CH:17]=[C:18]([C:20]([F:21])([F:22])[F:23])[CH:19]=1

Participants

5

Reactant 2

HCID 22471914HCID 22471914, compoundHCID 178506227HCID 178506227, compound

Product 1

HCID 22117972HCID 22117972, compound

Reagents, catalysts & solvents 2

HCID 178418751HCID 178418751, compoundCatalystHCID 3283Diethyl EtherSolvent2×

Procedure

4-Bromo-2-methylindene (10.7 g, 51 mmol) and NiCl2(PPh3)2 (1.8 g, 2.8 mmol) were dissolved in 150 mL of Et2O. 3,5-bis(trifluoromethyl)phenylmagnesium bromide (51 mmol) as a Et2O solution was added under vigorous stirring and the reaction stirred overnight at room temperature. After overnight stirring, the reaction was slowly quenched with H2O to neutralize unreacted Grignard. The solution was subsequently treated with 100 mL of 10% HCl(aq), and neutralized with saturated sodium bicarbonate aqueous solution. The organic layer was dried with magnesium sulfate and the solvent was removed by rotary evaporation. The remaining residue was loaded onto a silica gel column and eluted with hexane. Yield was 2.2 g (13%).

Workup

  1. stirringthe reaction stirred overnight at room temperature
  2. stirringAfter overnight stirring
  3. customthe reaction was slowly quenched with H2O
  4. additionThe solution was subsequently treated with 100 mL of 10% HCl(aq)
  5. dry with materialThe organic layer was dried with magnesium sulfate
  6. customthe solvent was removed by rotary evaporation
  7. washeluted with hexane

Sources & evidence

ORD record
ord-2ffd6bc494ad40bb8ba4586e6d939025
Source dataset
uspto-grants-2002_04
Patent number
US06376411B1

Reaction notes

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