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4-Ethylbenzaldehyde → 1-(2-(4-(4-ethylbenzylamino)piperidin-1-yl)ethyl)-7-methoxyquinoxalin-2(1H)-one

HRID 39968
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 39968
[NH2:1][CH:2]1[CH2:7][CH2:6][N:5]([CH2:8][CH2:9][N:10]2[C:19]3[C:14](=[CH:15][CH:16]=[C:17]([O:20][CH3:21])[CH:18]=3)[N:13]=[CH:12][C:11]2=[O:22])[CH2:4][CH2:3]1.[CH2:23]([C:25]1[CH:32]=[CH:31][C:28]([CH:29]=O)=[CH:27][CH:26]=1)[CH3:24].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(=O)([O-])O.[Na+]>C(O)(=O)C.C(Cl)(Cl)Cl>[CH2:23]([C:25]1[CH:32]=[CH:31][C:28]([CH2:29][NH:1][CH:2]2[CH2:3][CH2:4][N:5]([CH2:8][CH2:9][N:10]3[C:19]4[C:14](=[CH:15][CH:16]=[C:17]([O:20][CH3:21])[CH:18]=4)[N:13]=[CH:12][C:11]3=[O:22])[CH2:6][CH2:7]2)=[CH:27][CH:26]=1)[CH3:24]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 208614-EthylbenzaldehydeHCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 593978381-[2-(4-Aminopiperidin-1-yl)ethyl]-7-methoxyquinoxalin-2(1H)-one

Produkt 1

HCID 593980791-(2-(4-(4-ethylbenzylamino)piperidin-1-yl)ethyl)-7-methoxyquinoxalin-2(1H)-oneAusbeute 51 %

Reagenzien, Katalysatoren, Lösungsmittel

2
HCID 176Acetic AcidLösungsmittelHCID 6212ChloroformLösungsmittel

Versuchsvorschrift

To 10 mL of a chloroform solution containing 500 mg of 1-(2-(4-aminopiperidin-1-yl)ethyl)-7-methoxyquinoxalin-2(1H)-one and 200 mg of 4-ethylbenzaldehyde, 100 mg of acetic acid were added, and stirred at room temperature for 1 hour. To the reaction mixture, 526 mg of sodium triacetoxyborohydride was added, and stirred for 15 hours. Aqueous saturated sodium hydrogen carbonate solution was added, the organic layer was separated. The organic layer was washed with aqueous saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure. The residue thus obtained was purified by silica gel column chromatography [Silica Gel; Kanto Chemical Co., Inc., Silica Gel 60N, eluent; chloroform:methanol=10:1], to give 0.32 g of 1-(2-(4-(4-ethylbenzylamino)piperidin-1-yl)ethyl)-7-methoxyquinoxalin-2(1H)-one as a brown oil.

Aufarbeitung

  1. additionwere added
  2. stirringstirred for 15 hours
  3. customthe organic layer was separated
  4. washThe organic layer was washed with aqueous saturated sodium chloride solution
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customthe solvent was removed under reduced pressure
  7. customThe residue thus obtained
  8. customwas purified by silica gel column chromatography [Silica Gel; Kanto Chemical Co., Inc., Silica Gel 60N, eluent; chloroform:methanol=10:1]

Quellen und Nachweise

ORD-Eintrag
ord-4b4ada2b6abf4330a4c8ae283a8011b0
Quelldatensatz
uspto-grants-2013_09
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08524738B2

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