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Sodium Sulfite → 6-((6-Methoxyimidazo[1,2-b]pyridazin-3-yl)methyl)-2-(methylsulfinyl)benzo[d]thiazole

HRID 1848165
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HRID 1848165 반응식
[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]2[N:7]([C:9]([CH2:12][C:13]3[CH:23]=[CH:22][C:16]4[N:17]=[C:18]([S:20][CH3:21])[S:19][C:15]=4[CH:14]=3)=[CH:10][N:11]=2)[N:8]=1.C1C=C(Cl)C=C(C(OO)=[O:32])C=1.[O-]S([O-])=O.[Na+].[Na+]>C(Cl)Cl>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]2[N:7]([C:9]([CH2:12][C:13]3[CH:23]=[CH:22][C:16]4[N:17]=[C:18]([S:20]([CH3:21])=[O:32])[S:19][C:15]=4[CH:14]=3)=[CH:10][N:11]=2)[N:8]=1
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참가 물질

5

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HCID 24437Sodium SulfiteHCID 70297m-Chloroperbenzoic acidHCID 866811336-((6-Methoxyimidazo[1,2-b]pyridazin-3-yl)methyl)-2-(methylthio)benzo[d]thiazole

생성물 1

HCID 866811346-((6-Methoxyimidazo[1,2-b]pyridazin-3-yl)methyl)-2-(methylsulfinyl)benzo[d]thiazole수율 95.5%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

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온도
0 °C

실험 절차

To a solution of 6-((6-methoxyimidazo[1,2-b]pyridazin-3-yl)methyl)-2-(methylthio)benzo[d]thiazole (500 mg, 1.46 mmol) in DCM (30 mL) was added m-CPBA (314 mg, 1.82 mmol) at 0° C. The reaction mixture was stirred for 2 h at 0° C., then aq Na2SO3 (15 mL) was added and the mixture was stirred for 0.5 h. The organic layer was separated, dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by silica gel chromatography eluting with 50:1 to 20:1 DCM/MeOH to afford 6-((6-methoxyimidazo[1,2-b]pyridazin-3-yl)methyl)-2-(methylsulfinyl)benzo[d]thiazole as a yellow solid (500 mg, 95%). 1H NMR (300 MHz, CDCl3) δ 7.99-7.93 (m, 2H), 7.76 (d, J=9.6 Hz, 1H), 7.53 (dd, J=1.5, 8.4 Hz, 1H), 7.46 (s, 1H), 6.65 (d, J=9.3 Hz, 1H), 4.42 (s, 2H), 3.94 (s, 3H), 3.06 (s, 3H). LCMS (ESI) m/z 359 (M+H)+.

후처리

  1. stirringthe mixture was stirred for 0.5 h
  2. customThe organic layer was separated
  3. dry with materialdried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel chromatography
  7. washeluting with 50:1 to 20:1 DCM/MeOH

출처 및 근거

ORD 기록
ord-b7ec99ac52e04c1e9e8a125dd5ea4cfa
출처 데이터셋
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08952058B2

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