Sodium Hydroxide → N-(4-Methoxybenzyl)-2,2,4,6,7-pentamethyl-3-phenyl-2,3-dihydro-1-benzofuran-5-amine

HRID 1017873노트

반응식

HRID 1017873 반응식
[Cl-].[Al+3].[Cl-].[Cl-].[H-].[Al+3].[Li+].[H-].[H-].[H-].[CH3:11][O:12][C:13]1[CH:41]=[CH:40][C:16]([C:17]([NH:19][C:20]2[C:21]([CH3:39])=[C:22]([CH3:38])[C:23]3[O:27][C:26]([CH3:29])([CH3:28])[CH:25]([C:30]4[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=4)[C:24]=3[C:36]=2[CH3:37])=O)=[CH:15][CH:14]=1.[OH-].[Na+]>O1CCCC1>[CH3:11][O:12][C:13]1[CH:41]=[CH:40][C:16]([CH2:17][NH:19][C:20]2[C:21]([CH3:39])=[C:22]([CH3:38])[C:23]3[O:27][C:26]([CH3:29])([CH3:28])[CH:25]([C:30]4[CH:31]=[CH:32][CH:33]=[CH:34][CH:35]=4)[C:24]=3[C:36]=2[CH3:37])=[CH:15][CH:14]=1

참가 물질

6

반응물 4

HCID 14798Sodium HydroxideHCID 6451240Aluminum(III) ChlorideHCID 101801024-Methoxy-N-(2,2,4,6,7-pentamethyl-3-phenyl-2,3-dihydro-1-benzofuran-5-yl)benzamideHCID 21226445Aluminium lithium hydride

생성물 1

HCID 10222696N-(4-Methoxybenzyl)-2,2,4,6,7-pentamethyl-3-phenyl-2,3-dihydro-1-benzofuran-5-amine수율 59.1%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

To a suspension of aluminum chloride (2.25 g, 16.9 mmol) in tetrahydrofuran (20 ml) was gradually added under ice cooling lithium aluminum hydride (640 mg, 16.9 mmol) and the resulting mixture was stirred at the same temperature for 10 minutes. To this mixture was added 4-Methoxy-N-(2,2,4,6,7-pentamethyl-3-phenyl-2,3-dihydro-1-benzofuran-5-yl)benzamide (1.40 g, 3.37 mmol) and the mixture was refluxed with heating for 3 hours. The reaction mixture was poured into ice water and neutralized with an 8 N aqueous solution of sodium hydroxide. The product was extracted twice with ethyl acetate. The combined organic layers were washed with water, dried on magnesium sulfate, filtered, and then concentrated under reduced pressure. The residue was crystallized from methanol to obtain 0.80 g (59% yield) of the title compound. Melting point: 113-115° C.

후처리

  1. additionwas gradually added under ice
  2. temperaturethe mixture was refluxed
  3. temperaturewith heating for 3 hours
  4. extractionThe product was extracted twice with ethyl acetate
  5. washThe combined organic layers were washed with water
  6. customdried on magnesium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated under reduced pressure
  9. customThe residue was crystallized from methanol

출처 및 근거

ORD 기록
ord-88442c3db7f2443da5855f3cfbb70ef2
출처 데이터셋
uspto-grants-2002_11
특허 번호
US06479536B1

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