2,3,5,6-四氟对苯二甲酸 → 2,3,5,6-四氟苯甲酸

HRID 363219

反应方程式

HRID 363219 反应方程式
[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]

参与物

3

反应物 1

HCID 695492,3,5,6-四氟对苯二甲酸

产物 1

HCID 5675332,3,5,6-四氟苯甲酸

试剂、催化剂与溶剂 1

HCID 962聚[6-[4-(4-氰基苯基)苯氧基]己基甲基丙烯酸酯]溶剂

反应条件

温度
130 °C

实验过程

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.

后处理

  1. temperatureAfter cooling to 20° C.
  2. filtrationthe suspension then present was filtered
  3. washwashed with 60 g of water
  4. customthe white solid was dried

来源与证据

ORD记录
ord-0880ec92c1784433b8dda8cd82175cb3
来源数据集
uspto-grants-1999_02
专利号
US05872283

关联笔记

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