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Acetic Anhydride → 5-Ethoxymethylene-3-methyl-4-oxo-thiazolidine-2-thione
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Acetic Anhydride | HCID 7918 | — |
| 反応物 | 4-Thiazolidinone, 3-methyl-2-thioxo- | HCID 72900 | — |
| 溶媒 | Ethylorthoformate | HCID 53630039 | — |
| 生成物 | 5-Ethoxymethylene-3-methyl-4-oxo-thiazolidine-2-thione | HCID 247101 | — |
反応手順
3-Methyl-4-oxo-thiazolidine-2-thione (403 g) and ethyl orthoformate (1370 ml) were added to acetic anhydride (775 ml), and the mixture was refluxed for 6 hours. The mixture was allowed to stand, and the resulting crystals were collected by filtration and washed with diisopropyl ether to give 342 g of 5-ethoxymethylene-3-methyl-4-oxo-thiazolidine-2-thione.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05760032 |
| 出典データセット | uspto-grants-1998_06 |
| ORD ID | ord-8a0e850c286743f58e512debd432ad5f |
| 出典メモ | uspto-grants-1998_06 |