Diethyl Ether → HCID 59339307, Verbindung

HRID 1024358

Reaktionsgleichung

Reaktionsgleichung von HRID 1024358
O.[NH2:2][NH2:3].C(OCC)C.[CH3:9][C:10](=[CH:13][C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)[CH:11]=O>O>[CH3:9][CH:10]1[CH:13]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[NH:3][N:2]=[CH:11]1

Komponenten

5

Edukt 3

HCID 3283Diethyl EtherHCID 75572-Methylcinnamic aldehydeHCID 24654Hydrazine hydrate (1:1)

Produkt 1

HCID 59339307HCID 59339307, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

5.22 ml (1 equiv.) hydrazine hydrate was added to 100 mL diethylether. The emulsion was cooled with an ice bath. 15.0 mL 2-Methyl-3-phenyl-propenal was added dropwise, and the mixture was stirred overnight at room temperature. H2O was added, the organic layer was separated and the aqueous layer was extracted with diethylether. The combined organic layers were dried over Na2SO4, filtrated and concentrated in vacuo. Vacuum destillation yielded 5.9 g of desired product (mixture of diastereomeric pairs) as a clear fluid (76-82° C., 0.2-0.3 mbar). 1H NMR (400 MHz, CDCl3) of first diastereomeric pair: δ 0.71 (d, J=7 Hz), 3H), 3.20-3.31 (m, 1H), 4.77 (d, J=10 Hz, 1H), 6.73 (br s, 1H), 7.23-7.42 (m, 5H), 8.55-8.60 (m, 2H). 1H NMR (400 MHz, CDCl3) of second diastereomeric pair: δ 1.24 (d, J=7 Hz), 3H), 2.90-3.11 (m, 1H), 4.22 (d, J=11 Hz, 1H), 6.71 (br s, 1H), 7.23-7.42 (m, 5H), 8.55-8.60 (m, 2H).

Aufarbeitung

  1. temperatureThe emulsion was cooled with an ice bath
  2. customthe organic layer was separated
  3. extractionthe aqueous layer was extracted with diethylether
  4. dry with materialThe combined organic layers were dried over Na2SO4
  5. filtrationfiltrated
  6. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-88d12fe8045944118e1ee305342321f0
Quelldatensatz
uspto-grants-2014_05
Patentnummer
US08722887B2

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