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Sodium Carbonate → Tetrafluorophthalic anhydride
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Sodium Carbonate | HCID 10340 | — |
| 反応物 | 3,4,5,6-tetrafluorobenzene-1,2-dicarbonyl Fluoride | HCID 11075613 | — |
| 溶媒 | O-Xylene | HCID 7237 | — |
| 生成物 | Tetrafluorophthalic anhydride | HCID 69545 | 93.4% |
反応手順
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%.
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-18ab039806514561aec2e8f42c1ae46b |
| 出典メモ | uspto-grants-1996_06 |