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Perfluoro-phthalide → Tetrafluorophthalic anhydride
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Perfluoro-phthalide | HCID 11032047 | — |
| 反応物 | 3,4,5,6-tetrafluorobenzene-1,2-dicarbonyl Fluoride | HCID 11075613 | — |
| 溶媒 | Trifluoroacetic acid | HCID 6422 | — |
| 生成物 | Tetrafluorophthalic anhydride | HCID 69545 | 65% |
反応手順
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%.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05523476 |
| 出典データセット | uspto-grants-1996_06 |
| ORD ID | ord-a5447d4cd48543ae8d09bfc0e87669c2 |
| 出典メモ | uspto-grants-1996_06 |