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Methyl iodide → N-(4-iso-propylbenzenesulfonyl)-alpha-(2-n-propy-4-methoxycarbonylphenoxy)-alpha-methyl-3,4-methylenedioxyphenylacetamide

HRID 865525
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HRID 865525 반응식
[CH:1]([C:4]1[CH:9]=[CH:8][C:7]([S:10]([NH:13][C:14](=[O:39])[CH:15]([C:30]2[CH:35]=[CH:34][C:33]3[O:36][CH2:37][O:38][C:32]=3[CH:31]=2)[O:16][C:17]2[CH:22]=[CH:21][C:20]([C:23]([O:25][CH3:26])=[O:24])=[CH:19][C:18]=2[CH2:27][CH2:28][CH3:29])(=[O:12])=[O:11])=[CH:6][CH:5]=1)([CH3:3])[CH3:2].[CH3:40][Si]([NH-])(C)C.C[Si]([NH-])(C)C.[Li+].[Li+].IC>C1COCC1>[CH:1]([C:4]1[CH:5]=[CH:6][C:7]([S:10]([NH:13][C:14](=[O:39])[C:15]([C:30]2[CH:35]=[CH:34][C:33]3[O:36][CH2:37][O:38][C:32]=3[CH:31]=2)([O:16][C:17]2[CH:22]=[CH:21][C:20]([C:23]([O:25][CH3:26])=[O:24])=[CH:19][C:18]=2[CH2:27][CH2:28][CH3:29])[CH3:40])(=[O:12])=[O:11])=[CH:8][CH:9]=1)([CH3:2])[CH3:3]
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참가 물질

5

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HCID 6328Methyl iodideHCID 15383771N-(4-iso-propylbenzenesulfonyl)-alpha-(4-carbomethoxy-2-n-propylphenoxy)-3,4-methylenedioxyphenylacetamideHCID 86588160Lithim bis(trimethylsilylamide)

생성물 1

HCID 19080425N-(4-iso-propylbenzenesulfonyl)-alpha-(2-n-propy-4-methoxycarbonylphenoxy)-alpha-methyl-3,4-methylenedioxyphenylacetamide수율 55%

시약·촉매·용매 1

HCID 8028
Tetrahydrofuran
용매
2회

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온도
-78 °C

실험 절차

To a solution of 0.516 g (0.93 mmol) of the product of Example 57 dissolved in 1.0 mL of anhydrous THF was added 2.80 mL (2.80 mmol) of a 1.0 M solution of lithium bis(trimethylsilylamide) in THF at -78° C. under a nitrogen atmosphere. The reaction mixture was magnetically stirred at -78° C. for 1 hour, then 174 μL (2.80 mmol) of iodomethane was added via syringe. The reaction was allowed to warm to room temperature and was stirred an additional 14 hours. The reaction was next quenched with excess 10% aqueous NaHSO4 and partitioned between EtOAc and water. The organic layer was washed with saturated aqueous NaCl, dried (MgSO4), filtered and evaporated. The residue was purified on a silica gel flash chromatography column eluted with CHCl3 --MeOH--NH4OH (90:10:1). Evaporation of the purified fractions and drying in vacuo afforded 0.293 g (55%) of the title compound as an amorphous solid.

후처리

  1. temperatureto warm to room temperature
  2. stirringwas stirred an additional 14 hours
  3. customThe reaction was next quenched with excess 10% aqueous NaHSO4
  4. custompartitioned between EtOAc and water
  5. washThe organic layer was washed with saturated aqueous NaCl
  6. dry with materialdried (MgSO4)
  7. filtrationfiltered
  8. customevaporated
  9. customThe residue was purified on a silica gel flash chromatography column
  10. washeluted with CHCl3 --MeOH--NH4OH (90:10:1)
  11. customEvaporation of the purified fractions
  12. customdrying in vacuo

출처 및 근거

ORD 기록
ord-6d20357a41b544bb891f7d0d51e185a5
출처 데이터셋
uspto-grants-1996_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05565485

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