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Potassium Carbonate → 4-(4-Methoxy-2-nitrophenyl)indan-1-one

HRID 514759
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 514759
C([O-])([O-])=O.[K+].[K+].CC1(C)C(C)(C)OB([C:15]2[CH:23]=[CH:22][CH:21]=[C:20]3[C:16]=2[CH2:17][CH2:18][C:19]3=[O:24])O1.Cl[C:27]1[CH:32]=[CH:31][C:30]([O:33][CH3:34])=[CH:29][C:28]=1[N+:35]([O-:37])=[O:36].CCCCCC.C(OCC)(=O)C>O1CCOCC1.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:34][O:33][C:30]1[CH:31]=[CH:32][C:27]([C:15]2[CH:23]=[CH:22][CH:21]=[C:20]3[C:16]=2[CH2:17][CH2:18][C:19]3=[O:24])=[C:28]([N+:35]([O-:37])=[O:36])[CH:29]=1
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Komponenten

8

Edukt 4

HCID 11430Potassium CarbonateHCID 251404-Chloro-3-nitroanisoleHCID 21226206Ethyl acetate hexaneHCID 220320882,3-Dihydro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-inden-1-one

Produkt 1

HCID 673683614-(4-Methoxy-2-nitrophenyl)indan-1-one

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 178418397
HCID 178418397, Verbindung
Katalysator
HCID 962WaterLösungsmittel
HCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

Potash (7.5 g, 54.3 mmol) and Pd(PPh3)4(1.6 g, 1.4 mmol) were added to a solution of 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)indan-1-one 34 (7.0 g, 27.1 mmol) and 4-chloro-3-nitroanisole (5.1 g, 27.1 mmol) in a mixture of dioxane (80 mL) and water (20 mL). The mixture obtained was heated to 80° C. under argon, kept at this temperature for 16 h (TLC monitoring, eluent: hexane-ethyl acetate, 1:1), cooled, filtered through Celite, evaporated, and dissolved in CH2Cl2. Then the mixture was filtered off from the insoluble portion, evaporated with silica gel, and purified on a short thick column with silica gel (eluent: hexane—CH2Cl2 100:0→0:100, CH2Cl2-ethyl acetate 100:0→50:50). Yield of 35: 5.59 g. The product was used in the next step without additional purification.

Aufarbeitung

  1. customThe mixture obtained
  2. filtrationfiltered through Celite
  3. customevaporated
  4. dissolutiondissolved in CH2Cl2
  5. filtrationThen the mixture was filtered off from the insoluble portion
  6. customevaporated with silica gel
  7. custompurified on a short thick column with silica gel (eluent: hexane—CH2Cl2 100:0→0:100, CH2Cl2-ethyl acetate 100:0→50:50)
  8. customThe product was used in the next step without additional purification

Quellen und Nachweise

ORD-Eintrag
ord-287f9ac7a91f4a8397400d0b2b11dfcc
Quelldatensatz
uspto-grants-2015_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09108916B2

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