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Triethylamine → (E)-3-(1-ethyl 3,3,5-trimethyl 2,4-dioxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-7-yl) acrylic acid ethyl ester

HRID 68945
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 68945
[CH2:1]([N:3]1[C:9](=[O:10])[C:8]([CH3:12])([CH3:11])[C:7](=[O:13])[N:6]([CH3:14])[C:5]2[CH:15]=[C:16](OS(C(F)(F)F)(=O)=O)[CH:17]=[CH:18][C:4]1=2)[CH3:2].[C:27]([O:31][CH2:32][CH3:33])(=[O:30])[CH:28]=[CH2:29].[Cl-].[Li+].C(N(CC)CC)C>Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.CN(C=O)C>[CH2:32]([O:31][C:27](=[O:30])/[CH:28]=[CH:29]/[C:16]1[CH:17]=[CH:18][C:4]2[N:3]([CH2:1][CH3:2])[C:9](=[O:10])[C:8]([CH3:11])([CH3:12])[C:7](=[O:13])[N:6]([CH3:14])[C:5]=2[CH:15]=1)[CH3:33]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 8471TriethylamineHCID 8821Ethyl AcrylateHCID 433294Lithium ChlorideHCID 86670475Trifluoromethanesulfonic acid 1-ethyl-3,3,5-trimethyl-2,4-dioxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepine-7-yl ester

Produkt 1

HCID 66960494(E)-3-(1-ethyl 3,3,5-trimethyl 2,4-dioxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-7-yl) acrylic acid ethyl ester
Ausbeute 103,1 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418476HCID 178418476, VerbindungKatalysatorHCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
180 °C

Versuchsvorschrift

Trifluoromethane sulfonic acid 1-ethyl-3,3,5-trimethyl-2,4-dioxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-7-yl ester (0.40 g), ethyl acrylate (0.13 g), dichlorobis(triphenylphosphine)palladium (II) (35 mg), lithium chloride (64 mg), and triethylamine (0.19 ml) were added to DMF (4 ml). The mixture was heated at 180° C. (microwave reactor) for 20 minutes. The reaction liquid was cooled to room temperature, and subjected to celite filtration. The filtrate was condensed under reduced pressure, and the residue was purified by silica gel column chromatography (hexane:ethyl acetate=70:30→30:70). The purified product was condensed under reduced pressure to give the title compound (0.36 g) as a pale yellow solid.

Aufarbeitung

  1. customThe reaction liquid
  2. temperaturewas cooled to room temperature
  3. filtrationsubjected to celite filtration
  4. customcondensed under reduced pressure
  5. customthe residue was purified by silica gel column chromatography (hexane:ethyl acetate=70:30→30:70)
  6. customcondensed under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-3f1cc1ac4ce94ccd88111b5c7eccc670
Quelldatensatz
uspto-grants-2014_09
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08822453B2

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