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Water → 4,4-Dioctyl-4H-cyclopenta[2,1-b:3,4-b']dithiophene

HRID 2193821
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2193821
OS(O)(=O)=O.[S:6]1[CH:10]=[CH:9][C:8]([C:11](O)([CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH3:27])[CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH3:19])=[C:7]1[C:29]1[S:30][CH:31]=[CH:32][CH:33]=1.C(Cl)Cl.O>CCCCCCCC>[CH2:12]([C:11]1([CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH3:27])[C:33]2[CH:32]=[CH:31][S:30][C:29]=2[C:7]2[S:6][CH:10]=[CH:9][C:8]1=2)[CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH3:19]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 962WaterHCID 1118Sulfuric AcidHCID 6344DichloromethaneHCID 585680009-([2,2'-Bithiophen]-3-yl)heptadecan-9-ol

Produkt 1

HCID 595825444,4-Dioctyl-4H-cyclopenta[2,1-b:3,4-b']dithiophene

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 356Octane
Lösungsmittel

Versuchsvorschrift

H2SO4 (9.38 mL) was added dropwise to 9-([2,2′-bithiophen]-3-yl)heptadecan-9-ol (IIe) (6.20 g, 15 mmol) in 200 ml n-octane under stirring at room temperature. After stirring for 12 h, CH2Cl2 (130 mL) and water (130 mL) were added. The organic layer was separated and the aqueous layer was extracted with CH2Cl2. The combined organic extracts were successively washed with saturated NaHCO3 and brine. After drying over MgSO4, the solvent was removed in vacuo. The crude oil was purified with column chromatography (eluent hexane) to afford a pure dark yellow oil (Ie) (3.19 g, 52.9%). 1H-NMR (CDCl3): δ=7.14 (d, J=4.8 Hz, 2H), 6.93 (d, J=5.1 Hz, 2H), 1.87-1.79 (m, 4H), 1.40-1.06 (m, 24H), 0.95-0.82 (m, 6H).

Aufarbeitung

  1. stirringAfter stirring for 12 h
  2. customThe organic layer was separated
  3. extractionthe aqueous layer was extracted with CH2Cl2
  4. washThe combined organic extracts were successively washed with saturated NaHCO3 and brine
  5. dry with materialAfter drying over MgSO4
  6. customthe solvent was removed in vacuo
  7. customThe crude oil was purified with column chromatography (eluent hexane)
  8. customto afford a pure dark yellow oil (Ie) (3.19 g, 52.9%)

Quellen und Nachweise

ORD-Eintrag
ord-18d009546e0b4b0fa18a90103f7b2441
Quelldatensatz
uspto-grants-2012_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08329923B2

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