참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|
| 반응물 | Potassium Hydroxide | HCID 14797 | — |
| 반응물 | Acetylacetone | HCID 31261 | — |
| 반응물 | 4-Methoxybenzylamine | HCID 75452 | — |
| 반응물 | Ethyl 2-(4-methoxybenzylamino)-4,6-dimethylnicotinate | HCID 19933377 | — |
| 반응물 | Ethyl beta-amino-beta-ethoxyacrylate hydrochloride | HCID 53395434 | — |
| 용매 | Ethanol | HCID 702 | — |
| 생성물 | 2-(4-Methoxybenzylamino)-4,6-dimethylnicotinamide | HCID 19933376 | 70% |
반응 단계
In a three-necked flask containing ethanol (6.12mL) is added ethyl 3-amino-3-ethoxyacrylate hydrochloride(3g, 15.3mmol). The solution is treated with 4-methoxybenzylamine(2mL, 15.3mmol) and the mixture is stirred at 22° C. for 1.5 h. The reaction mixture was heated to 80° C. for 3 h. The reaction is cooled to 22° C. and an ethanolic solution of potassium hydroxide (0.86 g, 15.3 mmol, 25.0 mL of ethanol) is added. Neat 2,4-pentanedione (1.57 mL, 15.3 mmol) is added to the solution dropwise over 15 minutes at room temperature. The reaction mixture is aged at room temperature for 24 hours. During the age the nicotinate precipitates out of the reaction as does KCl. The reaction mixture is concentrated in vacuo. The crude mixture is chromatographed on silica gel to afford a 70% yield of the product, ethyl 2-(4-methoxybenzylamino )-4,6-dimethylnicotinate, 27.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| 특허 번호 | US05424432 |
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| 출처 데이터셋 | uspto-grants-1995_06 |
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| ORD ID | ord-df276dfc5b8f41f39fbda1b70b2c26ca |
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| 출처 메모 | uspto-grants-1995_06 |
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