Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetic Acid | HCID 176 | — |
| Reactant | O-Phenylenediamine | HCID 7243 | — |
| Reactant | Methyl N-cyanocarbamate | HCID 89023 | — |
| Solvent | Water | HCID 962 | — |
| Product | Carbendazim | HCID 25429 | 72% |
Reaction Steps
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.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US03997553 |
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| Source dataset | uspto-grants-1976_12 |
|---|
| ORD ID | ord-3da346668bc146ccb8ddc4a1ee5b499a |
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| Source note | uspto-grants-1976_12 |
|---|
