関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Ethyl p-methylbenzenesulfonate | HCID 6638 | — |
| 反応物 | 2-Methylbenzothiazole | HCID 8446 | — |
| 溶媒 | Acetone | HCID 180 | — |
| 生成物 | Benzothiazolium, 3-ethyl-2-methyl-, 4-methylbenzenesulfonate (1:1) | HCID 84711 | — |
反応手順
300 g (2 mol) of 2-methylbenzothiazole and 440 g (2.2 mol) of ethyl p-toluenesulfonate (or a mixture of ethyl o- and p-toluenesulfonate) are heated with stirring to 150° C., the temperature rising to about 200° C. due to the exothermic reaction. After 10 minutes, the mixture is poured into two liters of acetone, and the product which has precipitated is filtered off with suction, washed with acetone and dried in vacuo. Yield 730 g (98%).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 特許番号 | US04966828 |
|---|
| 出典データセット | uspto-grants-1990_10 |
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| ORD ID | ord-89a1d61946f14c56b89599dd1f2e90c8 |
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| 出典メモ | uspto-grants-1990_10 |
|---|
