Sodium Carbonate → Tetrafluorophthalic anhydride

HRID 259946

反応式

HRID 259946 の反応式
[F:1][C:2]1[C:10]([F:11])=[C:9]([F:12])[C:8]([F:13])=[C:4]([C:5](F)=[O:6])[C:3]=1[C:14](F)=[O:15].C(=O)([O-])[O-:18].[Na+].[Na+]>C1(C)C(C)=CC=CC=1>[F:1][C:2]1[C:10]([F:11])=[C:9]([F:12])[C:8]([F:13])=[C:4]2[C:5](=[O:18])[O:6][C:14](=[O:15])[C:3]=12

参加物

4

反応物 2

HCID 10340Sodium CarbonateHCID 110756133,4,5,6-tetrafluorobenzene-1,2-dicarbonyl Fluoride

生成物 1

HCID 69545Tetrafluorophthalic anhydride収率 93.4%

試薬・触媒・溶媒 1

HCID 7237O-Xylene溶媒

実験手順

Into a 500 ml glass reactor equipped with a reflux condenser and a stirrer, 100 g (0.413 mol) of the 3,4,5,6-tetrafluorophthaloyldifluoride separated by distillation from the mixture of Example 2, 43.8 g (0.413 mol) of sodium carbonate and 200 g of xylene were charged, and the mixture was reacted at 130° C. for 1.5 hours with vigorous stirring. Then, the inorganic substance was removed by filtration, and the residue was separated by distillation to obtain 84.9 g of tetrafluorophthalic anhydride. The yield was 93.4%.

後処理

  1. customInto a 500 ml glass reactor equipped with a reflux condenser and a stirrer
  2. additionwere charged
  3. customthe mixture was reacted at 130° C. for 1.5 hours with vigorous stirring
  4. customThen, the inorganic substance was removed by filtration
  5. customthe residue was separated by distillation

出典と根拠

ORDレコード
ord-18ab039806514561aec2e8f42c1ae46b
出典データセット
uspto-grants-1996_06
特許番号
US05523476

関連ノート

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