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Methyl iodide → Ethyl (E)-4-[2-(5,6,7,8-tetrahydro-3,5,5,8,8-pentamethylnaphthalen-2-yl)propen-1-yl]-1-methyl-2-imidazolecarboxylate

HRID 2259996
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HRID 2259996 반응식
[CH3:1][C:2]1[C:3](/[C:16](/[CH3:34])=[CH:17]/[C:18]2[N:19]=[C:20]([C:29]([O:31][CH2:32][CH3:33])=[O:30])[N:21](S(=O)(=O)N(C)C)[CH:22]=2)=[CH:4][C:5]2[C:6]([CH3:15])([CH3:14])[CH2:7][CH2:8][C:9]([CH3:13])([CH3:12])[C:10]=2[CH:11]=1.CI.[C:37]([O-])([O-])=O.[K+].[K+]>CC(C)=O>[CH3:1][C:2]1[C:3](/[C:16](/[CH3:34])=[CH:17]/[C:18]2[N:19]=[C:20]([C:29]([O:31][CH2:32][CH3:33])=[O:30])[N:21]([CH3:37])[CH:22]=2)=[CH:4][C:5]2[C:6]([CH3:14])([CH3:15])[CH2:7][CH2:8][C:9]([CH3:12])([CH3:13])[C:10]=2[CH:11]=1
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참가 물질

5

반응물 3

HCID 6328Methyl iodideHCID 11430Potassium CarbonateHCID 86749151ethyl (E)-4-[2-(5,6,7,8-tetrahydro-3,5,5,8,8-pentamethylnaphthalen-2-yl)propen-1-yl]-1-(N,N-dimethylsulfamoyl)-2-imidazolecarboxylate2회

생성물 1

HCID 86749152Ethyl (E)-4-[2-(5,6,7,8-tetrahydro-3,5,5,8,8-pentamethylnaphthalen-2-yl)propen-1-yl]-1-methyl-2-imidazolecarboxylate수율 50%

시약·촉매·용매 1

HCID 180
Acetone
용매

실험 절차

Ethyl (E)-4-[2-(5,6,7,8 -tetrahydro-3,5,5,8,8-pentamethylnaphthalen-2-yl)propen-1-yl]-1-N,N-dimethylsulfamoyl-2-imidazolecarboxylate (Compound 4, 70 mg, 0.18 mmol) was dissolved in acetone (10 mL) at room temperature and treated with methyl iodide (0.5 mL) and K2CO3 (350 mg). The suspension was stirred for 30 min, filtered through Celite and concentrated under reduced pressure. The residue was treated with water (5 mL) and the organic material was extracted with ethyl acetate, washed with brine, dried (MgSO4) and concentrated in vacuo. The residue was purified by flash chromatography on silica gel (hexanes/ethyl acetate=5:1) to give the title compound as a light yellow solid (35 mg, 50%).

후처리

  1. filtrationfiltered through Celite
  2. concentrationconcentrated under reduced pressure
  3. additionThe residue was treated with water (5 mL)
  4. extractionthe organic material was extracted with ethyl acetate
  5. washwashed with brine
  6. dry with materialdried (MgSO4)
  7. concentrationconcentrated in vacuo
  8. customThe residue was purified by flash chromatography on silica gel (hexanes/ethyl acetate=5:1)

출처 및 근거

ORD 기록
ord-fd5e7da44aa044d18d0eebdb8e1d0c7c
출처 데이터셋
uspto-grants-1995_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05475113

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