Ethanol → [2-(3-Methoxy-phenyl)-cyclohexyl]-acetic acid ethyl ester

HRID 418893

반응식

HRID 418893 반응식
[CH2:1]([O:3][C:4](=[O:20])[CH2:5][C:6]1[CH2:11][CH2:10][CH2:9][CH2:8][C:7]=1[C:12]1[CH:17]=[CH:16][CH:15]=[C:14]([O:18][CH3:19])[CH:13]=1)[CH3:2].C(O)C>[Pd].O1CCCC1>[CH2:1]([O:3][C:4](=[O:20])[CH2:5][CH:6]1[CH2:11][CH2:10][CH2:9][CH2:8][CH:7]1[C:12]1[CH:17]=[CH:16][CH:15]=[C:14]([O:18][CH3:19])[CH:13]=1)[CH3:2]

참가 물질

5

반응물 2

HCID 702EthanolHCID 193584881-(3-Methoxyphenyl)-2-(ethoxycarbonylmethyl)cyclohexene

생성물 1

HCID 66651961[2-(3-Methoxy-phenyl)-cyclohexyl]-acetic acid ethyl ester수율 89.4%

시약·촉매·용매 2

HCID 23938Palladium촉매HCID 8028Tetrahydrofuran용매

실험 절차

Combine [2-(3-methoxy-phenyl)-cyclohex-1-enyl]-acetic acid ethyl ester (9.91 g, 36.0 mmol), 10% Pd on carbon (2.06 g, 14.4 mmol), and ethanol (90 mL) and tetrahydrofuran (5 mL), degas, and add 50 psi H2 at room temperature. After 18 hours, filter off the Pd catalyst over celite eluting with ethyl acetate. Concentrate and flash chromatograph with 0% to 20% ethyl acetate/hexanes to yield the titled compound (8.89 g, 89%) as a clear oil. TLC Rf=0.42 in 6:1 hexanes:ethyl acetate. 1H NMR (CDCl3):1H NMR (CDCl3): 7.21 (t, 1H, J=8.1 Hz), 6.78 (d, 2H, J=7.5 Hz), 6.72 (s, 1H), 3.98 (q, 2H, J=7.0 Hz), 3.80 (m, 3H), 2.89 (m, 1H), 2.51 (m, 1H), 2.31 (m, 1H), 1.97 (m, 1H), 1.88 (m, 1H), 1.72 (m, 4H), 1.44 (m, 3H), 1.16 (t, 3H, J=6.6 Hz).

후처리

  1. additionadd 50 psi H2 at room temperature
  2. filtrationfilter off the Pd catalyst over celite
  3. washeluting with ethyl acetate
  4. concentrationConcentrate

출처 및 근거

ORD 기록
ord-91d9d590bfe84817ae42a4e90d6f605f
출처 데이터셋
uspto-grants-2012_01
특허 번호
US08093302B2

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