Thionyl Chloride → 3-Bromo-2,4,5-trifluorobenzoyl chloride
Reaktionsgleichung
[Br:1][C:2]1[C:3]([F:13])=[C:4]([CH:8]=[C:9]([F:12])[C:10]=1[F:11])[C:5](O)=[O:6].S(Cl)([Cl:16])=O>>[Br:1][C:2]1[C:3]([F:13])=[C:4]([CH:8]=[C:9]([F:12])[C:10]=1[F:11])[C:5]([Cl:16])=[O:6]Komponenten
3
Versuchsvorschrift
A solution of the 3-bromo-2,4,5-trifluorobenzoic acid (2.5 g) in thionyl chloride (10 ml) was refluxed for 2.5 hours, and then concentrated. The resulting residue was purified by distillation through Widmer fractionating column to give the title compound (2.3 g), bp 98°-102° C./18 mmHg.
Aufarbeitung
- concentrationconcentrated
- distillationThe resulting residue was purified by distillation through Widmer fractionating column
Quellen und Nachweise
- ORD-Eintrag
- ord-e7c2bcbdd9f2453ebd6e159b46ed4b38
- Quelldatensatz
- uspto-grants-1989_05
- Patentnummer
- US04826982
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