Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → (S)-1-Phenylethyl 2-bromo-2-phenylacetate
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | 1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide | HCID 15908 | — |
| 반응물 | Bromo(phenyl)acetic acid | HCID 97919 | — |
| 반응물 | 1-Phenylethanol, (S)- | HCID 443135 | — |
| 촉매 | 4-(Dimethylamino)pyridine | HCID 14284 | — |
| 용매 | Dichloromethane | HCID 6344 | — |
| 용매 | Ethyl Acetate | HCID 8857 | — |
| 생성물 | (S)-1-Phenylethyl 2-bromo-2-phenylacetate | HCID 59166394 | 73% |
반응 단계
To a mixture of α-bromophenylacetic acid (10.75 g, 0.050 mol), (S)-(−)-1-phenylethanol (7.94 g, 0.065 mol) and DMAP (0.61 g, 5.0 mmol) in dry dichloromethane (100 mL) was added solid EDCI (12.46 g, 0.065 mol) all at once. The resulting solution was stirred at room temperature under Ar for 18 hours and then it was diluted with ethyl acetate, washed (H2O×2, brine), dried (Na2SO4), filtered, and concentrated to give a pale yellow oil. Flash chromatography (SiO2/hexane-ethyl acetate, 4:1) of this oil provided the title compound (11.64 g, 73%) as a white solid. 1H NMR (400 MHz, CDCl3) δ 7.53-7.17 (m, 10H), 5.95 (q, J=6.6 Hz, 0.5H), 5.94 (q, J=6.6 Hz, 0.5H), 5.41 (s, 0.5H), 5.39 (s, 0.5H), 1.58 (d, J=6.6 Hz, 1.5H), 1.51 (d, J=6.6 Hz, 1.5H).
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US07741347B2 |
| 출처 데이터셋 | uspto-grants-2010_06 |
| ORD ID | ord-b03116b13a2d425b88217b10ab981f45 |
| 출처 메모 | uspto-grants-2010_06 |