참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|
| 반응물 | Sodium Carbonate | HCID 10340 | — |
| 반응물 | 2-Bromo-4-fluoroanisole | HCID 136292 | — |
| 반응물 | (Cyclopent-1-en-1-yl)boronic acid | HCID 3861343 | — |
| 촉매 | Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+) | HCID 178418228 | — |
| 용매 | Acetonitrile | HCID 6342 | — |
| 용매 | Dichloromethane | HCID 6344 | — |
| 생성물 | 2-(Cyclopent-1-en-1-yl)-4-fluoro-1-methoxybenZene | HCID 59394934 | 49.2% |
반응 단계
A microwave vial was charged with 2-bromo-4-fluoro-1-methoxybenzene (500 mg, 2.44 mmol), 1-cyclopentenylboronic acid (273 mg, 2.44 mmol), and Pd(dppf)Cl2 (199 mg, 0.24 mmol). The solids were dissolved in acetonitrile (7 mL) and 2 M Na2CO3 (5 mL) and the mixture heated under microwave irradiation for 20 min at 110° C. The reaction was diluted with dichloromethane (50 mL) and the layers separated. The organic layer was washed with brine, dried over Na2SO4, filtered and concentrated. Purification by silica gel chromatography (10-30% ethyl acetate/hexane) provided 2-cyclopentenyl-4-fluoro-1-methoxybenzene (231 mg, 49% yield). 1H NMR (400.0 MHz, DMSO-d6) δ 7.01 (dd, J=3.1, 10.0 Hz, 1H), 6.92-6.82 (m, 1H), 6.54 (dd, J=2.4, 6.5 Hz, 1H), 6.54 (s, 1H), 3.87 (s, 3H), 2.78-2.73 (m, 2H), 2.62-2.57 (m, 2H), 2.03-1.95 (m, 2H).
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 특허 번호 | US08367660B2 |
|---|
| 출처 데이터셋 | uspto-grants-2013_02 |
|---|
| ORD ID | ord-6f855cbf05f34ea5b1929c1c4412c1d3 |
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| 출처 메모 | uspto-grants-2013_02 |
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