Hydrochloric Acid → HCID 54504810, Verbindung

HRID 614520Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 614520
[N+:1]([C:4]1[CH:5]=[C:6]([CH:8]=[CH:9][CH:10]=1)N)([O-:3])=[O:2].[ClH:11].[Cl-].[N+](C1C=C([N+]#N)C=CC=1)([O-])=O.[Cl:24][C:25](=[CH2:28])[C:26]#[N:27]>O.CC(C)=O.C(O)(=O)C>[Cl:24][C:25]([Cl:11])([CH2:28][C:6]1[CH:8]=[CH:9][CH:10]=[C:4]([N+:1]([O-:3])=[O:2])[CH:5]=1)[C:26]#[N:27]

Komponenten

8

Edukt 4

HCID 313Hydrochloric AcidHCID 74233-NitroanilineHCID 701982-ChloroacrylonitrileHCID 117886903-nitrobenzenediazonium Chloride

Produkt 1

HCID 54504810HCID 54504810, VerbindungAusbeute 88 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 176Acetic AcidLösungsmittelHCID 180AcetoneLösungsmittelHCID 962WaterLösungsmittel2×

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

138 g (1 mole) of m-nitro-aniline are slowly added in a 2-liter reactor to a mixture of 300 ml of concentrated HCl, 150 ml of water and 150 ml of acetic acid. The mixture is heated until the amine hydrochloride dissolves, whereafter the mixture is cooled to 0° C. with vigorous agitation. With the temperature remaining between 0° and 3° C., 70 g of NaHO2 dissolved in 150 ml of H2O are added.. The m-nitro-benzene-diazonium chloride solution is added simultaneously with an aqueous solution of 25 g of CuCl2.2H2O to a solution of 87 g of α-chloro-acrylonitrile in 150 ml of acetone. The temperature is kept at 30° C. Evolution of nitrogen ceases after about 6 hours. The α,α-dichloro-β-(3-nitrophenyl)propionitrile is extracted with benzene, washed in sodium hydroxide, then washed with water. After drying and removal of the solvent the product is distilled at low pressure. 215 g of α,α-dichloro-β-(3-nitrophenyl)propionitrile, corresponding to an 88% yield, are obtained, in the form of a slightly pinkish oil distilling at 140° C. at a pressure of 0.1 mm.

Aufarbeitung

  1. dissolutiondissolves, whereafter the mixture
  2. customremaining between 0° and 3° C.
  3. additionare added
  4. customis kept at 30° C
  5. extractionThe α,α-dichloro-β-(3-nitrophenyl)propionitrile is extracted with benzene
  6. washwashed in sodium hydroxide
  7. washwashed with water
  8. customAfter drying
  9. customremoval of the solvent the product
  10. distillationis distilled at low pressure

Quellen und Nachweise

ORD-Eintrag
ord-e2ee8034627f42b286a24988fb41c6a4
Quelldatensatz
uspto-grants-1979_03
Patentnummer
US04145362

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