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1,8-Diazabicyclo(5.4.0)undec-7-ene → HCID 44537962, Verbindung

HRID 446799
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 446799
[N:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][C:2]=1[CH2:11][O:12][C:13]1[CH:18]=[CH:17][C:16]([CH2:19][C:20]([OH:22])=[O:21])=[CH:15][CH:14]=1.Br.Br[CH2:25][C:26]([C:28]1[CH:33]=[CH:32][N:31]=[CH:30][CH:29]=1)=O.C1CCN2C(=NCCC2)CC1>C(#N)C>[N:31]1[CH:32]=[CH:33][C:28]([C:26]2[CH2:25][O:21][C:20](=[O:22])[C:19]=2[C:16]2[CH:15]=[CH:14][C:13]([O:12][CH2:11][C:2]3[CH:3]=[CH:4][C:5]4[C:10](=[CH:9][CH:8]=[CH:7][CH:6]=4)[N:1]=3)=[CH:18][CH:17]=2)=[CH:29][CH:30]=1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 27762394-(Bromoacetyl)pyridine hydrobromideHCID 145002352-(4-(Quinolin-2-ylmethoxy)phenyl)acetic acid

Produkt 1

HCID 44537962HCID 44537962, VerbindungAusbeute 15,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

To a solution of 2-(4-(quinolin-2-ylmethoxy)phenyl)acetic acid (3.0 g, 0.01 mol) in acetonitrile (40 mL) were added TEA (1.3 mL, 0.01 mol) and 2-bromo-1-(pyridin-4-yl)ethanone hydrobromide (2.86 g, 0.01 mol) at RT under an inert atmosphere. The reaction mixture was stirred for 1 h and then cooled to 0° C. DBU (46.6 g, 0.03 mol) was then added and the reaction mixture was stirred for 2 h at 0° C. and quenched with HCl (1 N). The aqueous layer was basified with a NaHCO3 solution and extracted with DCM (2×50 mL). The combined organic layers were washed with water, dried over Na2SO4 and concentrated in vacuo to obtain the crude product. The crude material was purified via silica gel column chromatography eluting with 25% EtOAc in hexanes to afford 4-(pyridin-4-yl)-3-(4-(quinolin-2-ylmethoxy)phenyl)furan-2(5H)-one (600 mg, 15%) as a solid.

Aufarbeitung

  1. stirringthe reaction mixture was stirred for 2 h at 0° C.
  2. customquenched with HCl (1 N)
  3. extractionextracted with DCM (2×50 mL)
  4. washThe combined organic layers were washed with water
  5. dry with materialdried over Na2SO4
  6. concentrationconcentrated in vacuo
  7. customto obtain the crude product
  8. customThe crude material was purified via silica gel column chromatography
  9. washeluting with 25% EtOAc in hexanes

Quellen und Nachweise

ORD-Eintrag
ord-3a348bf143824e5a9869f7b92111d3ec
Quelldatensatz
uspto-grants-2013_07
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08481534B2

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