참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|
| 반응물 | Ethyl anisate | HCID 60979 | — |
| 반응물 | 6-Chloro-2-picoline | HCID 87601 | — |
| 반응물 | Lithium Hexamethyldisilazide | HCID 2733832 | — |
| 용매 | Tetrahydrofuran | HCID 8028 | — |
| 생성물 | 2-(6-Chloro-2-pyridinyl)-1-(4-methoxyphenyl)ethanone | HCID 21992234 | 86% |
반응 단계
To a cold (0° C.) solution of 6-chloro-2-picoline (18.3 mL 166.5 mmol) and ethyl 4-methoxybenzoate (30.0 g, 166.5 mmol) in tetrahydrofuran (300 mL) was added lithium bis(trimethylsilyl)amide (333 mL, 1.0 M in tetrahydrofuran, 332.7 mmol) dropwise via a pressure equalizing funnel over 1 hour. Upon complete addition, the cold 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 2-(6-chloro-2-pyridinyl)-1-(4-methoxyphenyl)ethanone (37.4 g, 86%) as a yellow solid. 1H NMR (CDCl3): δ 7.99 (d, 2 H), 7.57 (t, 1 H), 7.22–7.19 (m, 2 H), 6.90 (d, 2H), 4.39 (s, 2H), 3.83 (s, 3 H); MS m/z 262 (M+1).
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| 특허 번호 | US07087618B2 |
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| 출처 데이터셋 | uspto-grants-2006_08 |
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| ORD ID | ord-6656788808ec4627bf81fed1d8c98130 |
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| 출처 메모 | uspto-grants-2006_08 |
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