참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|
| 반응물 | Ethyl anisate | HCID 60979 | — |
| 반응물 | 4-Chloro-2-methylpyridine | HCID 581392 | — |
| 반응물 | Lithium Hexamethyldisilazide | HCID 2733832 | — |
| 용매 | Tetrahydrofuran | HCID 8028 | — |
| 생성물 | 2-(4-Chloro-2-pyridinyl)-1-(4-methoxyphenyl)ethanone | HCID 21874054 | — |
반응 단계
To a cold (0° C.) solution of 4-chloro-2-picoline (10 g, 78.4 mmol) and ethyl 4-methoxybenzoate (14.1 g, 78.4 mmol) in tetrahydrofuran (100 mL) was added lithium bis(trimethylsilyl)amide (157 mL, 1.0 M in tetrahydrofuran, 157 mmol) dropwise via a pressure equalizing funnel over half an hour. Upon complete addition, the ice bath was removed and the resulting solution was heated at 45° C. for 15 hours. The mixture was cooled to room temperature, and the solution was concentrated. Methanol was added to quench the reaction, resulting in the formation of a yellow precipitate. The precipitate was collected by filtration and dried to give the product as a mixture of enol and ketone tautomers. MS m/z 262 (M+1).
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| 특허 번호 | US07141569B2 |
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| 출처 데이터셋 | uspto-grants-2006_11 |
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| ORD ID | ord-8158751891aa43319ab2d9f15e32c72a |
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| 출처 메모 | uspto-grants-2006_11 |
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