StartseiteMCPWorkbenchSkills
StartseiteWorkbenchBenachrichtigungenMein Bereich
llms.txt · MCP-AnleitungDatenschutz · Nutzungsbedingungen · Supportv1.8.0
  1. Startseite
  2. /Reaktion

Trityl chloride → 3-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-trityl-1H-pyrazole

HRID 1402002
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1402002
[CH3:1][C:2]1[C:6]([B:7]2[O:11][C:10]([CH3:13])([CH3:12])[C:9]([CH3:15])([CH3:14])[O:8]2)=[CH:5][NH:4][N:3]=1.Cl[C:17]([C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1)([C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1)[C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1.C(N(CC)CC)C>CN(C)C=O>[CH3:1][C:2]1[C:6]([B:7]2[O:11][C:10]([CH3:13])([CH3:12])[C:9]([CH3:15])([CH3:14])[O:8]2)=[CH:5][N:4]([C:17]([C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)([C:30]2[CH:31]=[CH:32][CH:33]=[CH:34][CH:35]=2)[C:24]2[CH:25]=[CH:26][CH:27]=[CH:28][CH:29]=2)[N:3]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 6456Trityl chlorideHCID 8471TriethylamineHCID 178434487HCID 178434487, Verbindung

Produkt 1

HCID 669055743-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-trityl-1H-pyrazole

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

3-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (7.4 g, 0.0356 mol), 1,1′,1″-(chloromethanetriyl)tribenzene (9.9 g, 0.0356 mol) and triethylamine (7.2 g, 0.0712 mol) were suspended in N,N-dimethylformamide (70.0 mL) and stirred at room temperature for 16 hours. The reaction mixture was quenched by addition of water (30.0 mL) and extracted with ethyl acetate (3×30.0 mL). The combined organic layers were washed with saturated aqueous sodium chloride solution (40.0 mL), dried over sodium sulfate and concentrated in vacuo. This crude residue was initially purified via column chromatography eluting with petroleum ether:ethyl acetate (10:1, by volume) and then purified by preparative HPLC to yield title compound as a white solid.

Aufarbeitung

  1. customThe reaction mixture was quenched by addition of water (30.0 mL)
  2. extractionextracted with ethyl acetate (3×30.0 mL)
  3. washThe combined organic layers were washed with saturated aqueous sodium chloride solution (40.0 mL)
  4. dry with materialdried over sodium sulfate
  5. concentrationconcentrated in vacuo
  6. customThis crude residue was initially purified via column chromatography
  7. washeluting with petroleum ether:ethyl acetate (10:1, by volume)
  8. custompurified by preparative HPLC

Quellen und Nachweise

ORD-Eintrag
ord-ece28e4b563a489c91dcc4436e3d1114
Quelldatensatz
uspto-grants-2014_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08907101B2

Notizen zur Reaktion

Wird geladen…

Auf dieser SeiteKomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion