Toluene → HCID 86635501, Verbindung

HRID 1775957Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1775957
Cl.[Cl:2][C:3]1[CH:8]=[CH:7][C:6]([NH:9][NH2:10])=[CH:5][CH:4]=1.[CH2:11](Br)[C:12]#[CH:13].C1(C)C=CC=CC=1>[Cl-].C([N+](CCCC)(CCCC)CCCC)CCC.[OH-].[Na+].O>[Cl:2][C:3]1[CH:8]=[CH:7][C:6]([N:9]([CH2:13][C:12]#[CH:11])[NH2:10])=[CH:5][CH:4]=1

Komponenten

7

Edukt 3

HCID 1140TolueneHCID 7842Propargyl bromideHCID 71600Hydrazine, (4-chlorophenyl)-, hydrochloride (1:1)

Produkt 1

HCID 86635501HCID 86635501, VerbindungAusbeute 48 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 70681Tetrabutylammonium ChlorideKatalysatorHCID 962WaterLösungsmittelHCID 14798Sodium HydroxideLösungsmittel

Versuchsvorschrift

4-Chlorophenylhydrazine hydrochloride (550 mg, 3 mmol) was added to a vigorously stirred mixture of tetra-n-butylammonium chloride (42 mg, 0.15 mmol) in 50% aqueous sodium hydroxide (3 mL) followed by 80% propargyl bromide in toluene (490 mg, 3.3 mmol). The reaction was stirred at room temperature for 20 h. The reaction was diluted with water (30 mL) and extracted with chloroform (3×10 mL). The combined organic layer was dried (Na2SO4), filtered and concentrated under reduced pressure to a dark brown oil (530 mg). The oil was subjected to column chromatography (silica gel, eluent: 50% dichloromethane in hexanes) to give an orange solid (260 mg, 48%).

Aufarbeitung

  1. extractionextracted with chloroform (3×10 mL)
  2. dry with materialThe combined organic layer was dried (Na2SO4)
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure to a dark brown oil (530 mg)

Quellen und Nachweise

ORD-Eintrag
ord-7ba96ab28c4641d0af6fcaa64c69bd4b
Quelldatensatz
uspto-grants-2016_02
Patentnummer
US09260429B2

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