Ethylene Glycol → Diethyl 2-acetamido-2-{2-[4-(1,1-ethylenedioxy-5-phenylpentyl)phenyl]ethyl}malonate

HRID 323812노트

반응식

HRID 323812 반응식
[C:1]([NH:4][C:5]([CH2:16][CH2:17][C:18]1[CH:23]=[CH:22][C:21]([C:24](=[O:35])[CH2:25][CH2:26][CH2:27][CH2:28][C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=2)=[CH:20][CH:19]=1)([C:11]([O:13][CH2:14][CH3:15])=[O:12])[C:6]([O:8][CH2:9][CH3:10])=[O:7])(=[O:3])[CH3:2].[CH2:36](O)[CH2:37][OH:38].C1(C)C=CC(S(O)(=O)=O)=CC=1.C(N(CC)CC)C>C1C=CC=CC=1.C(OCC)(=O)C>[C:1]([NH:4][C:5]([CH2:16][CH2:17][C:18]1[CH:23]=[CH:22][C:21]([C:24]2([O:38][CH2:37][CH2:36][O:35]2)[CH2:25][CH2:26][CH2:27][CH2:28][C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=2)=[CH:20][CH:19]=1)([C:11]([O:13][CH2:14][CH3:15])=[O:12])[C:6]([O:8][CH2:9][CH3:10])=[O:7])(=[O:3])[CH3:2]

참가 물질

7

반응물 4

HCID 174Ethylene GlycolHCID 6101p-Toluenesulfonic acidHCID 8471TriethylamineHCID 22178485Diethyl 2-acetamido-2-{2-[4-(1-oxo-5-phenylpentyl)phenyl]ethyl}malonate

생성물 1

HCID 21026720Diethyl 2-acetamido-2-{2-[4-(1,1-ethylenedioxy-5-phenylpentyl)phenyl]ethyl}malonate

시약·촉매·용매 2

HCID 241Benzene용매HCID 8857Ethyl Acetate용매

실험 절차

A solution of diethyl 2-acetamido-2-{2-[4-(1-oxo-5-phenylpentyl)phenyl]ethyl}malonate (13.5 g), ethylene glycol (3.1 ml) and p-toluenesulfonic acid (0.53 g) in benzene (135 ml) was refluxed under heating for 20 hours, while dehydrating with Dean-Stark trap. The reaction mixture was treated with triethylamine (2.4 ml) and ethyl acetate (200 ml) was added thereto. The mixture was washed with water and saturated brine, dried over anhydrous sodium sulfate and the solvent was distilled away under reduced pressure to give a pale yellow oily substance (15.9 g). The obtained pale yellow oily substance was purified by silica gel column chromatography (eluent; hexane: ethyl acetate=1:1) to give diethyl 2acetamido-2-{2-[4-(1,1-ethylenedioxy-5-phenylpentyl)phenyl]ethyl}malonate (14.1 g) as a colorless transparent oily substance.

후처리

  1. temperatureunder heating for 20 hours
  2. additionwas added
  3. washThe mixture was washed with water and saturated brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. distillationthe solvent was distilled away under reduced pressure
  6. customto give a pale yellow oily substance (15.9 g)
  7. customThe obtained pale yellow oily substance was purified by silica gel column chromatography (eluent; hexane: ethyl acetate=1:1)

출처 및 근거

ORD 기록
ord-b578552f3d1e4dffb32a08a9e8eefef9
출처 데이터셋
uspto-grants-2001_04
특허 번호
US06214873B1

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