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Ethanol → 1-(4-Bromophenyl)pyrene

HRID 1775387
Notes
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Reaction equation

HRID 1775387 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([Br:8])=[CH:4][CH:3]=1.[C:9]1(B(O)O)[C:22]2[C:23]3=[C:24]4[C:19](=[CH:20][CH:21]=2)[CH:18]=[CH:17][CH:16]=[C:15]4[CH:14]=[CH:13][C:12]3=[CH:11][CH:10]=1.C([O-])([O-])=O.[Na+].[Na+].CCO>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C1(C)C=CC=CC=1>[Br:8][C:5]1[CH:6]=[CH:7][C:2]([C:16]2[C:15]3[C:24]4=[C:23]5[C:12](=[CH:13][CH:14]=3)[CH:11]=[CH:10][CH:9]=[C:22]5[CH:21]=[CH:20][C:19]4=[CH:18][CH:17]=2)=[CH:3][CH:4]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 702EthanolHCID 78041,4-DibromobenzeneHCID 10340Sodium CarbonateHCID 5084102Pyren-1-ylboronic acid

Product 1

HCID 221380391-(4-Bromophenyl)pyreneYield 63%

Reagents, catalysts & solvents 2

HCID 178418397
HCID 178418397, compound
Catalyst
HCID 1140TolueneSolvent

Conditions

Temperature
90 °C

Procedure

A mixture of 10 g (42.4 mmol) 1,4-dibromobenzene, 10.43 g (42.4 mmol) of Pyren-1-ylboronic acid, 0.5 g (0.424 mmol) of Tetrakis(triphenylphosphine)Palladium, 32 ml of 2M Na2CO3, 80 ml of EtOH and 160 ml toluene was degassed and placed under nitrogen, and then heated at 90° C. for 24 h. After the reaction finish, the mixture was allowed to cool to room temperature. The organic layer was extracted with ethyl acetate and water, dried with anhydrous magnesium sulfate, the solvent was removed and the residue was purified by column chromatography on silica (hexane-dichloromethane) to give product 9.5 g (63%) as a white solid.

Workup

  1. customwas degassed
  2. temperatureto cool to room temperature
  3. extractionThe organic layer was extracted with ethyl acetate and water
  4. dry with materialdried with anhydrous magnesium sulfate
  5. customthe solvent was removed
  6. customthe residue was purified by column chromatography on silica (hexane-dichloromethane)

Sources & evidence

ORD record
ord-72377fa5671f41aeba95657ee51f4b33
Source dataset
uspto-grants-2016_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09260363B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes