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Sodium Carbonate → 1-(4-Bromophenyl)pyrene

HRID 1827606
Notes
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Reaction equation

HRID 1827606 reaction equation
[Br:1][C:2]1[CH:7]=[CH:6][C:5](I)=[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+]>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:1][C:2]1[CH:7]=[CH:6][C:5]([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:4][CH:3]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 10340Sodium CarbonateHCID 115221-Bromo-4-iodobenzeneHCID 5084102Pyren-1-ylboronic acid

Product 1

HCID 221380391-(4-Bromophenyl)pyreneYield 80.3%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalyst
HCID 1140
Toluene
Solvent

Procedure

Under an atmosphere of argon, 4-bromoiodobenzene (7.0 g, 25 mmole), 1-pyreneboronic acid (5.7 g, 23 mmole) and tetrakis(triphenylphosphine)palladium(0) (0.5 g, 0.43 mmole, 1.7% Pd) were dissolved into toluene (50 ml). To the obtained solution, an aqueous solution of sodium carbonate (7.3 g, 69 mmole, 3 eq/35 ml) was added. The resultant solution was heated under refluxing for 10 hours and left standing for one night. The formed organic layer was separated, washed with a saturated aqueous solution of sodium chloride (50 ml) and dried with anhydrous magnesium sulfate. Then, the solvent was removed by distillation and a yellow oil was obtained. The obtained oil was purified by the column chromatography (silica gel/hexane, hexane+3% dichloromethane and hexane+10% dichloromethane, successively) and white needle crystals (6.6 g, 80%) were obtained.

Workup

  1. temperatureunder refluxing for 10 hours
  2. waitleft
  3. waitstanding for one night
  4. customThe formed organic layer was separated
  5. washwashed with a saturated aqueous solution of sodium chloride (50 ml)
  6. dry with materialdried with anhydrous magnesium sulfate
  7. customThen, the solvent was removed by distillation
  8. customa yellow oil was obtained
  9. customThe obtained oil was purified by the column chromatography (silica gel/hexane, hexane+3% dichloromethane and hexane+10% dichloromethane

Sources & evidence

ORD record
ord-8f6e31f8b132459084581ee687a5b2d7
Source dataset
uspto-grants-2006_05
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07053255B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes