2,3,5,6-Tetrafluoroterephthalic acid → 2,3,5,6-Tetrafluorobenzoic Acid

HRID 363219

反応式

HRID 363219 の反応式
[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]

参加物

3

反応物 1

HCID 695492,3,5,6-Tetrafluoroterephthalic acid

生成物 1

HCID 5675332,3,5,6-Tetrafluorobenzoic Acid

試薬・触媒・溶媒 1

HCID 962Water溶媒

反応条件

温度
130 °C

実験手順

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.

後処理

  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

出典と根拠

ORDレコード
ord-0880ec92c1784433b8dda8cd82175cb3
出典データセット
uspto-grants-1999_02
特許番号
US05872283

関連ノート

読み込み中…