Aluminum(III) Chloride → 6-Bromoisoquinoline

HRID 1621282

반응식

HRID 1621282 반응식
[Al+3].[Cl-].[Cl-].[Cl-].[Br:5][C:6]1[CH:29]=[CH:28][C:9]([CH2:10][N:11]([CH2:22][CH:23](OC)OC)S(C2C=CC(C)=CC=2)(=O)=O)=[CH:8][CH:7]=1>ClCCl>[Br:5][C:6]1[CH:29]=[C:28]2[C:9](=[CH:8][CH:7]=1)[CH:10]=[N:11][CH:22]=[CH:23]2

참가 물질

4

반응물 2

HCID 6451240Aluminum(III) ChlorideHCID 59226245N-(4-Bromo-benzyl)-N-(2,2-dimethoxy-ethyl)-4-methyl-benzenesulfonamide

생성물 1

HCID 3136816-Bromoisoquinoline수율 60.2%

시약·촉매·용매 1

HCID 6344Dichloromethane용매2회

실험 절차

To a mechanically stirred suspension of 95.2 g (699.5 mmol) AlCl3 in 400 ml dichloromethane a solution of 59.9 g (139.8 mmol) N-(4-Bromo-benzyl)-N-(2,2-dimethoxy-ethyl)-4-methyl-benzenesulfonamide (2) in 400 ml dichloromethane was added and the reaction was stirred at room temperature for 4 h. After standing overnight, the reaction mixture was poured on ice, the organic layer was separated and the aqueous layer was extracted twice with dichloromethane. The combined dichloromethane solutions were washed with 1 N NaOH (2×) and saturated NaHCO3-solution (2×). After drying with MgSO4 and evaporation of the solvent, the crude product was purified by silicagel chromatography (heptane/ethyl acetate 1:1) to yield 17.5 g of the title compound. Rt=0.68 min (Method C). Detected mass: 208.1/210.1 (M+H+).

후처리

  1. additionwas added
  2. waitAfter standing overnight
  3. additionthe reaction mixture was poured on ice
  4. customthe organic layer was separated
  5. extractionthe aqueous layer was extracted twice with dichloromethane
  6. washThe combined dichloromethane solutions were washed with 1 N NaOH (2×) and saturated NaHCO3-solution (2×)
  7. dry with materialAfter drying with MgSO4 and evaporation of the solvent
  8. customthe crude product was purified by silicagel chromatography (heptane/ethyl acetate 1:1)

출처 및 근거

ORD 기록
ord-f82307a1177c49c1a1c5d49ca0815f86
출처 데이터셋
uspto-grants-2014_07
특허 번호
US08772492B2

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