Toluene → N,2,5-trimethyl-N-phenylaniline

HRID 382081

Reaktionsgleichung

Reaktionsgleichung von HRID 382081
CC([O-])(C)C.[Na+].C1(C)C=CC=CC=1.[CH3:14][NH:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1.Cl[C:23]1[CH:28]=[C:27]([CH3:29])[CH:26]=[CH:25][C:24]=1[CH3:30]>CCOCC.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[CH3:30][C:24]1[CH:25]=[CH:26][C:27]([CH3:29])=[CH:28][C:23]=1[N:15]([CH3:14])[C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1

Komponenten

7

Edukt 4

HCID 1140TolueneHCID 7515N-MethylanilineHCID 32883Chloro-p-xyleneHCID 23676156Sodium t-butoxide

Produkt 1

HCID 11042050N,2,5-trimethyl-N-phenylanilineAusbeute 95 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 9811564Bis(dibenzylideneacetone)palladiumKatalysatorHCID 3283Diethyl EtherLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

An oven-dried test tube was purged with argon and charged with Pd2(dba)3 (4.6 mg, 0.005 mmol, 1.0 mol % Pd), 2 [Example 1] (6.0 mg, 0.015 mmol, 1.5 mol %), and NaOt-Bu (135 mg, 1.40 mmol). The test tube was fitted with a septum, then toluene (2.0 mL), N-methylaniline (135 μL, 1.25 mmol), and 2-chloro-p-xylene (135 μL, 1.01 mmol) were added. The mixture was stirred at 80° C. for 13 h, then cooled to room temperature, diluted with ether (20 mL), filtered and concentrated. The crude material was purified by flash chromatography on silica gel to afford 202 mg (95%) of a colorless oil.

Aufarbeitung

  1. customAn oven-dried test tube was purged with argon
  2. customThe test tube was fitted with a septum
  3. temperaturecooled to room temperature
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe crude material was purified by flash chromatography on silica gel

Quellen und Nachweise

ORD-Eintrag
ord-abe61cf2f5174f308cab0c3eb5ed35e5
Quelldatensatz
uspto-grants-2001_10
Patentnummer
US06307087B1

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