化工社化工社 化学情報印刷レポート · 研究参考用
Ethyl orthopropionate → 4,8-Dichloro-1-ethyl-[1,2,4]triazolo[4,3-a]quinoxaline
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Ethyl orthopropionate | HCID 66995 | — |
| 反応物 | 2,6-Dichloro-3-hydrazinylquinoxaline | HCID 1473346 | — |
| 生成物 | 4,8-Dichloro-1-ethyl-[1,2,4]triazolo[4,3-a]quinoxaline | HCID 13385721 | 62% |
反応手順
2,6-Dichloro-3-hydrazinoquinoxaline (1.0 g., 0.0044 mole), the product of Preparation L(a), was refluxed with 15 ml. of triethyl orthopropionate for 4 hours and cooled to room temperature. The precipitate was recovered by filtration, washed with cyclohexane and air dried to afford 730 mg. (62% yield) of 4,8-dichloro-1-ethyl-[1,2,4]triazolo[4,3-a]quinoxaline, m.p. >250° C.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04623725 |
| 出典データセット | uspto-grants-1986_11 |
| ORD ID | ord-a0d76c46a12b454ab4e84a1cb523fb9d |
| 出典メモ | uspto-grants-1986_11 |