HuagongsheHuagongshe Chemistry Print Report · For research reference only
Thionyl Chloride → Benzoyl chloride, 2,4-dichloro-5-fluoro-3-nitro-
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Thionyl Chloride | HCID 24386 | — |
| Reactant | 2,4-Dichloro-5-fluoro-3-nitrobenzoic acid | HCID 2734259 | — |
| Product | Benzoyl chloride, 2,4-dichloro-5-fluoro-3-nitro- | HCID 11818130 | — |
Reaction Steps
106.6 g of 2,4-dichloro-5-fluoro-3-nitro-benzoic acid are heated at the boiling point under reflux with 250 ml of thionyl chloride for 2 hours. The excess thionyl chloride is then distilled off under normal pressure and the residue is fractionated under a fine vacuum. 104.7 g of 2,4-dichloro-5-fluoro-3-nitro-benzoyl chloride pass over at 110°-115° C./0.08-0.09 mbar. On standing, crystals of melting point 35°-37° C. form.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04981854 |
| Source dataset | uspto-grants-1991_01 |
| ORD ID | ord-a607af53d6a74582a8a1138320f1a937 |
| Source note | uspto-grants-1991_01 |