Sodium → 3-(2,2-Dichloroethenyl)-2,2-dimethylcyclopropane-1-carbonitrile

HRID 1701665Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1701665
Br[CH:2]([CH2:9][C:10]([Cl:13])([Cl:12])Cl)[C:3]([CH3:8])([CH3:7])[CH2:4][C:5]#[N:6].[Na]>C(O)C>[C:5]([CH:4]1[C:3]([CH3:7])([CH3:8])[CH:2]1[CH:9]=[C:10]([Cl:12])[Cl:13])#[N:6]

Komponenten

4

Edukt 2

HCID 5360545SodiumHCID 233480014-Bromo-6,6,6-trichloro-3,3-dimethylhexanenitrile

Produkt 1

HCID 128981733-(2,2-Dichloroethenyl)-2,2-dimethylcyclopropane-1-carbonitrile

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel2×

Versuchsvorschrift

A mixture of 3-bromo-1-cyano-2,2-dimethyl-5,5,5-trichloropentane (0.5 g.) and a solution of sodium (0.2 g.) in ethanol (10 ml.) is refluxed for 2 hours after which the ethanol is removed by evaporation under reduced pressure. The residue is partitioned between chloroform (20 ml.) and water (20 ml.) and the chloroform layer separated, washed with water and dried over anhydrous magnesium sulphate. Removal of the solvent by evaporation under reduced pressure yields 1-cyano 2-(2,2,-dichlorovinyl)-3,3-dimethylcyclopropane, identified by infra-red and nuclear magnetic resonance spectroscopy.

Aufarbeitung

  1. customis removed by evaporation under reduced pressure
  2. customThe residue is partitioned between chloroform (20 ml.) and water (20 ml.)
  3. customthe chloroform layer separated
  4. washwashed with water
  5. dry with materialdried over anhydrous magnesium sulphate
  6. customRemoval of the solvent
  7. customby evaporation under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-7756ac3e1c684e74a64a56e1b88dda1e
Quelldatensatz
uspto-grants-1980_03
Patentnummer
US04195033

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