Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|
| Edukt | Acetic Acid | HCID 176 | — |
| Edukt | O-Phenylenediamine | HCID 7243 | — |
| Edukt | Methyl N-cyanocarbamate | HCID 89023 | — |
| Lösungsmittel | Water | HCID 962 | — |
| Produkt | Carbendazim | HCID 25429 | 72% |
Reaktionsschritte
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.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patentnummer | US03997553 |
|---|
| Quelldatensatz | uspto-grants-1976_12 |
|---|
| ORD ID | ord-3da346668bc146ccb8ddc4a1ee5b499a |
|---|
| Quellennotiz | uspto-grants-1976_12 |
|---|
