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o-Phenylenebis(dimethylsilane) → Methyl 4-((dimethylamino)methyl)benzoate

HRID 1484224
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1484224
C[SiH](C)C1C=CC=CC=1[SiH](C)C.[CH3:13][N:14]([CH3:27])[C:15](=O)[C:16]1[CH:21]=[CH:20][C:19]([C:22]([O:24][CH3:25])=[O:23])=[CH:18][CH:17]=1>C1(C)C=CC=CC=1>[CH3:27][N:14]([CH2:15][C:16]1[CH:21]=[CH:20][C:19]([C:22]([O:24][CH3:25])=[O:23])=[CH:18][CH:17]=1)[CH3:13]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

4

Edukt 2

HCID 2733841o-Phenylenebis(dimethylsilane)HCID 11106558Methyl 4-(dimethylcarbamoyl)benzoate

Produkt 1

HCID 12361573Methyl 4-((dimethylamino)methyl)benzoateAusbeute 84 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1140TolueneLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

A 20-mL eggplant flask equipped with a three-way cock and a magnetic stirrer was heat dried while pumping to a vacuum of 5 Pa before its interior was purged with argon atmosphere. Into the flask, iron complex A (1.0 mg, 0.002 mmol) was admitted as catalyst and dissolved in toluene (0.5 mL). To the solution, 1,2-bis(dimethylsilyl)benzene (475 μL) was added through a syringe, and N,N-dimethyl-4-methoxycarbonylbenzamide (207 mg, 1.0 mmol) was added. The solution was stirred at 100° C. for 30 minutes. Toluene was distilled off in vacuum. The crude product was purified by silica gel-packed column chromatography using hexane/ethyl acetate (10/1) as developing solvent, obtaining N,N-dimethyl-4-methoxycarbonylbenzylamine (162 mg, 0.84 mmol, 84%). The results are shown as Entry 3 in Table 5. The resulting amine was identified for geometry by 1H and 13C-NMR spectroscopy and IR spectroscopy.

Aufarbeitung

  1. customA 20-mL eggplant flask equipped with a three-way cock and a magnetic stirrer
  2. temperaturewas heat
  3. customdried
  4. customwas purged with argon atmosphere
  5. distillationToluene was distilled off in vacuum
  6. customThe crude product was purified by silica gel-

Quellen und Nachweise

ORD-Eintrag
ord-eb9e00cc5ea743c595c84ed91fa3c82f
Quelldatensatz
uspto-grants-2016_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09421532B2

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