2-Bromomethyl-4,5-diphenyl-oxazole → Methyl 3-[3-[(4,5-diphenyl-2-oxazolyl)-methoxy]phenyl]propanoate

HRID 257628

반응식

HRID 257628 반응식
Br[CH2:2][C:3]1[O:4][C:5]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)=[C:6]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[N:7]=1.[OH:20][C:21]1[CH:22]=[C:23]([CH2:27][CH2:28][C:29]([O:31][CH3:32])=[O:30])[CH:24]=[CH:25][CH:26]=1>>[C:8]1([C:6]2[N:7]=[C:3]([CH2:2][O:20][C:21]3[CH:22]=[C:23]([CH2:27][CH2:28][C:29]([O:31][CH3:32])=[O:30])[CH:24]=[CH:25][CH:26]=3)[O:4][C:5]=2[C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1

참가 물질

3

반응물 2

HCID 5685992-Bromomethyl-4,5-diphenyl-oxazoleHCID 1512675Methyl 3-(3-hydroxyphenyl)propionate

생성물 1

HCID 10070328Methyl 3-[3-[(4,5-diphenyl-2-oxazolyl)-methoxy]phenyl]propanoate수율 833.6%

실험 절차

A mixture of 2-bromomethyl-4,5-diphenyloxazole (10.00 g, 3 mmol), methyl 3-(3-hydroxyphenyl)propanoate (5.73 g, 3 mmol) potassium carbonate (4.83 g, 3.5 mmol) potassium iodide (catalytic amount) and acetonetrile (150 mL) was stirred at reflux temperature. After 30 minutes, the mixture was filtered, concentrated in vacuo and the residual oil chromatographed on a column of silica gel. Elution with a mixture of hexanes and diethyl ether (3:1) furnished methyl 3-[3-((4,5-diphenyl-2-oxazolyl)methoxy]phenyl]propanoate (10.34 g, 78%) as an oil. An analytical sample was prepared by subjecting a 4 g sample to chromatography under the conditions described above to furnish pure material as an oil.

후처리

  1. temperatureat reflux temperature
  2. filtrationthe mixture was filtered
  3. concentrationconcentrated in vacuo
  4. customthe residual oil chromatographed on a column of silica gel
  5. washElution
  6. additionwith a mixture of hexanes and diethyl ether (3:1)

출처 및 근거

ORD 기록
ord-e370f361ed2a458c9049b70c3aca86eb
출처 데이터셋
uspto-grants-1993_11
특허 번호
US05262540

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