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Chlorobenzene → 2-Phenyl-1-(p-tolyl)-1-propanone

HRID 595351
Notes
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Reaction equation

HRID 595351 reaction equation
[C:1]1(Cl)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH3:8][C:9]1[CH:14]=[CH:13][C:12]([C:15](=[O:18])[CH2:16][CH3:17])=[CH:11][CH:10]=1.C(O[Na])(C)(C)C>C1(C)C=CC=CC=1.C([O-])(=O)C.[Pd+2].C([O-])(=O)C.COC1C=CC=C(N(C)C2C=CC=CC=2)C=1P(C1CCCCC1)C1CCCCC1>[C:1]1([CH:16]([CH3:17])[C:15]([C:12]2[CH:13]=[CH:14][C:9]([CH3:8])=[CH:10][CH:11]=2)=[O:18])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 3

HCID 7964ChlorobenzeneHCID 21429p-MethylpropiophenoneHCID 178418730sodium 2-methylpropan-2-olate

Product 1

HCID 130960712-Phenyl-1-(p-tolyl)-1-propanoneYield 97.5%

Reagents, catalysts & solvents 3

HCID 167845palladium(II) acetateCatalyst
HCID 71725627
(2-Dicyclohexylphosphino-3-methoxy-N-methyl-N-phenylbenzenamine
Catalyst
HCID 1140TolueneSolvent

Procedure

This reaction is carried out in the same manner as the reaction in example 3. The difference is that, the reactants are phenyl chloride (111.0 mg, 0.99 mmol), 1-(4-methylphenyl)-1-propanone (177.8 mg, 1.2 mmol), palladium acetate (6.7 mg, 0.030 mmol), 2-Methoxy-6-(N-methyl-N-phenyl-amino)phenyl(dicyclohexyl)phosphine (18.4 mg, 0.045 mmol), t-BuONa (115.8 mg, 1.2 mmol) in 3 mL dry toluene at 110° C. for 16.5 h. 2-Phenyl-1-(p-tolyl)-1-propanone (216.5 mg, contaminated with 11.9% of 1-(4-methylphenyl)propanone determined by 1H NMR) was obtained with a yield of 90% as liquid. 1H NMR (300 MHz, CDCl3) δ 7.87-7.80 (m, 2H, ArH), 7.30-7.20 (m, 4H, ArH), 7.20-7.08 (m, 3H, ArH), 4.64 (q, J=7.0 Hz, 1H, CH), 2.27 (s, 3H, ArCH3), 1.50 (d, J=7.0 Hz, 3H, CH3); 13C NMR (75 MHz, CDCl3) δ 199.7, 143.3, 141.6, 133.7, 129.0, 128.74, 128.72, 127.5, 126.6, 47.5, 21.3, 19.3; IR (neat) v (cm−1) 3061, 3028, 2975, 2930, 2870, 1682, 1606, 1570, 1492, 1452, 1408, 1372, 1332, 1304, 1253, 1225, 1210, 1177, 1008; MS (70 eV, EI) m/z (%): 224 (M+, 0.64), 119 (100).

Workup

  1. customThis reaction is carried out in the same manner as the reaction in example 3
  2. customat 110° C.
  3. customfor 16.5 h

Sources & evidence

ORD record
ord-a9186bd6383b46a3a59d5ca6a7f0c230
Source dataset
uspto-grants-2016_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09243011B2

Reaction notes

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