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Butylamine → (E)-3,4-difluoro-1-(4-propylphenyl)-4-[4-(2-p-toluylethynyl)phenyl]-3-buten-1-yne

HRID 37024
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 37024
[F:1]/[C:2](=[C:14](/[F:22])\[C:15]1[CH:20]=[CH:19][C:18](Br)=[CH:17][CH:16]=1)/[C:3]#[C:4][C:5]1[CH:10]=[CH:9][C:8]([CH2:11][CH2:12][CH3:13])=[CH:7][CH:6]=1.C(N)CCC.[C:28]1([CH3:36])[CH:33]=[CH:32][C:31]([C:34]#[CH:35])=[CH:30][CH:29]=1.C([O-])(O)=O.[Na+]>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.C1COCC1>[F:1]/[C:2](=[C:14](/[F:22])\[C:15]1[CH:20]=[CH:19][C:18]([C:35]#[C:34][C:31]2[CH:32]=[CH:33][C:28]([CH3:36])=[CH:29][CH:30]=2)=[CH:17][CH:16]=1)/[C:3]#[C:4][C:5]1[CH:10]=[CH:9][C:8]([CH2:11][CH2:12][CH3:13])=[CH:7][CH:6]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 8007ButylamineHCID 13018p-EthynyltolueneHCID 516892Sodium BicarbonateHCID 86748683(E)-3,4-difluoro-1-(4-propylphenyl)-4-(4-bromophenyl)-3-buten-1-yne

Produkt 1

HCID 86748682(E)-3,4-difluoro-1-(4-propylphenyl)-4-[4-(2-p-toluylethynyl)phenyl]-3-buten-1-yneAusbeute 65 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 8028TetrahydrofuranLösungsmittel2×

Versuchsvorschrift

Into a 100 ml three-necked flask, 2.86 g of cuprous iodide, 4.33 g (0.012 mol) of (E)-3,4-difluoro-1-(4-propylphenyl)-4-(4-bromophenyl)-3-buten-1-yne obtained in Example 4 and 30 ml of dry THF were charged under an argon atmosphere, followed by stirring at room temperature. Then, 1.42 g of n-butylamine and 1.53 g of p-toluylacetylene were added thereto. Then, 10 ml of a dry THF solution containing 0.69 g of (Ph3P)4Pd was added thereto, and the mixture was stirred at room temperature for 2 hours. After an addition of 30 ml of a saturated NaHCO3 aqueous solution, the mixture was subjected to liquid separation, and then extracted with methylene chloride. The solvent was distilled off, and the residue was purified by silica gel column chromatography to obtain 3.09 g (yield: 65%) of (E)-3,4-difluoro-1-(4-propylphenyl)-4-[4-(2-p-toluylethynyl)phenyl]-3-buten-1-yne.

Aufarbeitung

  1. additionwas added
  2. stirringthe mixture was stirred at room temperature for 2 hours
  3. customthe mixture was subjected to liquid separation
  4. extractionextracted with methylene chloride
  5. distillationThe solvent was distilled off
  6. customthe residue was purified by silica gel column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-620e0f6b5c9442309cbc7141c28d9b96
Quelldatensatz
uspto-grants-1995_05
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05419851

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