HuagongsheHuagongshe Chemistry Print Report · For research reference only
2-Chloro-5-nitro-3-(trifluoromethyl)pyridine → 6-Chloro-5-(trifluoromethyl)pyridin-3-amine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 2-Chloro-5-nitro-3-(trifluoromethyl)pyridine | HCID 3849140 | — |
| Catalyst | Zinc bromide | HCID 10421208 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | 6-Chloro-5-(trifluoromethyl)pyridin-3-amine | HCID 13532244 | 92.1% |
Reaction Steps
A mixture of 2-chloro-5-nitro-3-(trifluoromethyl)pyridine (5.25 mmol, 1.19 g), ZnBr2 (1.05 mmol, 0.200 g) and 5% Pt (C) (1.58 mmol, 0.31 g) in ethyl acetate (50 ml) was stirred for 20 hours under hydrogen atmosphere. The catalyst was filtered off and the solid was washed with warmed ethanol. The solvent was evaporated affording the expected product (0.95 g, yield 92%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08536165B2 |
| Source dataset | uspto-grants-2013_09 |
| ORD ID | ord-dd5d5aedb746487fad31455fd2cacb7e |
| Source note | uspto-grants-2013_09 |