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Sodium ethoxide → Diethyl 5-benzylthio-2-dimethylamino-2,4-hexadienedioate
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Sodium ethoxide | HCID 2723922 | — |
| 反応物 | Ethyl 2-(Benzylsulfanyl)acetate | HCID 3344750 | — |
| 反応物 | N-(dimethylamino-3-ethoxycarbonylpropenylidene)-N-methylmethanaminium tetrafluoroborate | HCID 86743575 | — |
| 反応物 | Diethyl 2-dimethylamino-5-phenylthio-2,4-hexadienedioate | HCID 86743580 | — |
| 溶媒 | Ethanol | HCID 702 | — |
| 生成物 | Diethyl 5-benzylthio-2-dimethylamino-2,4-hexadienedioate | HCID 54057031 | 96.3% |
反応手順
The procedure is as in Example 2 for the preparation of diethyl 2-dimethylamino-5-phenylthio-2,4-hexadienedioate, starting with N-(3-dimethylamino-3-ethoxycarbonylpropenylidene)-N-methylmethanaminium tetrafluoroborate (15.7 g), a 2M ethanolic solution of sodium ethylate (27.5 cc) and ethyl (benzylthio)acetate (11.6 g) in ethanol (110 cc). Diethyl 5-benzylthio-2-dimethylamino-2,4-hexadienedioate (19.2 g) is thereby obtained, and is used in the crude state in the subsequent phases.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04886835 |
| 出典データセット | uspto-grants-1989_12 |
| ORD ID | ord-52a467163cb542819ae42eb9bdc48136 |
| 出典メモ | uspto-grants-1989_12 |