Acetic Acid → Carbendazim

HRID 1973427

Reaktionsgleichung

Reaktionsgleichung von HRID 1973427
[C:1]([NH:3][C:4](=[O:7])[O:5][CH3:6])#[N:2].[C:8]1(N)[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=1[NH2:14].C(O)(=O)C>O>[N:2]1[C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=2[NH:14][C:1]=1[NH:3][C:4]([O:5][CH3:6])=[O:7]

Komponenten

5

Edukt 3

HCID 176Acetic AcidHCID 7243O-PhenylenediamineHCID 89023Methyl N-cyanocarbamate

Produkt 1

HCID 25429CarbendazimAusbeute 72 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
50 °C

Versuchsvorschrift

A solution of 5.0 parts of the salt of methyl cyanocarbamate with o-phenylenediamine and 1.5 parts of acetic acid in 25 parts of water is refluxed for 30 minutes. The solution is cooled to 50° C. and filtered. The product is washed with water and dried in vacuo at 95° C. This procedure gives 3.3 parts (72% yield) of 2-benzimidazolecarbamic acid, methyl ester.

Aufarbeitung

  1. filtrationfiltered
  2. washThe product is washed with water
  3. customdried in vacuo at 95° C

Quellen und Nachweise

ORD-Eintrag
ord-3da346668bc146ccb8ddc4a1ee5b499a
Quelldatensatz
uspto-grants-1976_12
Patentnummer
US03997553

Verknüpfte Notizen

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