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Chlorobenzene → Triphenylamine

HRID 13886
Notes
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Reaction equation

HRID 13886 reaction equation
Cl[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:8]1([NH:14][C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1.CC(C)([O-])C.[Na+]>C([O-])(=O)C.[Pd+2].C([O-])(=O)C.C1([B-](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C([PH+](C(C)(C)C)C(C)(C)C)(C)(C)C.C1(C)C(C)=CC=CC=1>[C:2]1([N:14]([C:15]2[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=2)[C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 3

HCID 7964ChlorobenzeneHCID 11487DiphenylamineHCID 23676156Sodium t-butoxide

Product 1

HCID 11775TriphenylamineYield 91.8%

Reagents, catalysts & solvents 3

HCID 167845palladium(II) acetateCatalyst
HCID 23136663
Tri-tert-butylphosphonium Tetraphenylborate
Catalyst
HCID 7237O-XyleneSolvent

Procedure

A 100-ml four-necked flask was equipped with a stirrer, a thermometer and a reflux condenser. 5.403 g (48 mmol) of chlorobenzene, 6.769 g (40 mmol) of diphenylamine, 4.613 g (48 mmol) of sodium-tert-butoxide, 0.002 g (0.01 mmol) of palladium (II) acetate and 5 ml of xylene were weighed in the flask, followed by stirring. Further, 0.021 g (0.04 mmol) of tri-tert-butylphosphonium tetraphenylborate obtained in Example A-1 was weighed in air and added into the flask. The flask was purged with argon, followed by stirring at 100-120° C. for 10 hours. After the completion of the reaction, 45 ml of xylene and 50 ml of saturated sodium chloride solution were added, followed by separation. The organic phase was purified by column chromatography to afford 9.008 g of triphenylamine (yield: 92 mol % based on diphenylamine). The melting point was 125-126° C.

Workup

  1. customA 100-ml four-necked flask was equipped with a stirrer
  2. additionadded into the flask
  3. customThe flask was purged with argon
  4. stirringby stirring at 100-120° C. for 10 hours
  5. customAfter the completion of the reaction, 45 ml of xylene and 50 ml of saturated sodium chloride solution
  6. additionwere added
  7. customfollowed by separation
  8. customThe organic phase was purified by column chromatography

Sources & evidence

ORD record
ord-6c6131f7f7fc4152b71a387511cff45e
Source dataset
uspto-grants-2010_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07728176B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes