HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ammonia → 4-Amino-3,5,6-trichloro-2-(trichloromethyl)pyridine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ammonia | HCID 222 | — |
| Reactant | Picloram | HCID 15965 | — |
| Reactant | Pyridine, 2,3,4,5-tetrachloro-6-(trichloromethyl)- | HCID 70811 | — |
| Product | 4-Amino-3,5,6-trichloro-2-(trichloromethyl)pyridine | HCID 138402 | — |
Reaction Steps
It is known that 4-amino-3,5,6-trichloropicolinic acid is prepared by a two-step method where heptachloro-2-picoline is aminated with anhydrous liquid ammonia to form 4-amino-hexachloro-2-picoline, an intermediate product that is isolated, and which is in turn hydrolyzed with sulfuric acid to form 4-amino-3,5,6-trichloropicolinic acid. See, for example, Russian Pat. No. 445,662.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04336384 |
| Source dataset | uspto-grants-1982_06 |
| ORD ID | ord-da9c886eb31644f2b2de86976b770d90 |
| Source note | uspto-grants-1982_06 |