2,3,5,6-Tetrafluoroterephthalic acid → 2,3,5,6-Tetrafluorobenzoic Acid
반응식
[F:1][C:2]1[C:10]([F:11])=[C:9](C(O)=O)[C:8]([F:15])=[C:7]([F:16])[C:3]=1[C:4]([OH:6])=[O:5]>O>[F:1][C:2]1[C:10]([F:11])=[CH:9][C:8]([F:15])=[C:7]([F:16])[C:3]=1[C:4]([OH:6])=[O:5]참가 물질
3
반응 조건
- 온도
- 130 °C
실험 절차
80 g of 80% strength by weight 2,3,5,6-tetrafluoroterephthalic acid (containing 8% by weight of sulfuric acid and 12% by weight of water) were mixed with 300 g of water in a 0.6 l enamelled autoclave and heated for 40 hours at 130° C. After cooling to 20° C. and depressurizing, the suspension then present was filtered, washed with 60 g of water and the white solid was dried. 42 g of 2,3,5,6-tetrafluorobenzoic acid having a content of 98% by weight and a melting point of 151° C. were obtained.
후처리
- temperatureAfter cooling to 20° C.
- filtrationthe suspension then present was filtered
- washwashed with 60 g of water
- customthe white solid was dried
출처 및 근거
- ORD 기록
- ord-0880ec92c1784433b8dda8cd82175cb3
- 출처 데이터셋
- uspto-grants-1999_02
- 특허 번호
- US05872283
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