Perfluoro-phthalide → Tetrafluorophthalic anhydride

HRID 259949

반응식

HRID 259949 반응식
[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].FC1(F)C2C(=C(F)C(F)=C(F)C=2F)C(=O)[O:19]1>FC(F)(F)C(O)=O>[F:1][C:2]1[C:10]([F:11])=[C:9]([F:12])[C:8]([F:13])=[C:4]2[C:5](=[O:19])[O:6][C:14](=[O:15])[C:3]=12

참가 물질

4

반응물 2

HCID 11032047Perfluoro-phthalideHCID 110756133,4,5,6-tetrafluorobenzene-1,2-dicarbonyl Fluoride

생성물 1

HCID 69545Tetrafluorophthalic anhydride수율 65%

시약·촉매·용매 1

HCID 6422Trifluoroacetic acid용매

실험 절차

Into a 200 ml glass reactor equipped with a reflux condenser and a stirrer, 50 g (0.207 mol) of the mixture (1:1) of the 3,4,5,6-tetrafluorophthaloyldifluoride and the 3,3,4,5,6,7-hexafluoro-1-[3H]-isobenzofuranone of Example 2, and 50 ml of trifluoroacetic acid were charged, and the mixture was refluxed for 72 hours with vigorous stirring. Then, the reaction mixture was separated by distillation to obtain 29.6 g of tetrafluorophthalic anhydride. The yield was 65%.

후처리

  1. customInto a 200 ml glass reactor equipped with a reflux condenser and a stirrer
  2. temperaturethe mixture was refluxed for 72 hours with vigorous stirring
  3. customThen, the reaction mixture was separated by distillation

출처 및 근거

ORD 기록
ord-a5447d4cd48543ae8d09bfc0e87669c2
출처 데이터셋
uspto-grants-1996_06
특허 번호
US05523476

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