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Sodium Methoxide → 8-(1-Ethyl-propyl)-3-(3-methoxy-thieno[3,2-b]pyridin-2-yl)-2,6-dimethyl-imidazo[1,2-b]pyridazine

HRID 226080
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HRID 226080 반응식
Br[C:2]1[C:6]2=[N:7][CH:8]=[CH:9][CH:10]=[C:5]2[S:4][C:3]=1[C:11]1[N:15]2[N:16]=[C:17]([CH3:25])[CH:18]=[C:19]([CH:20]([CH2:23][CH3:24])[CH2:21][CH3:22])[C:14]2=[N:13][C:12]=1[CH3:26].[CH3:27][O-:28].[Na+]>[Cu]I.CO>[CH2:21]([CH:20]([C:19]1[C:14]2[N:15]([C:11]([C:3]3[S:4][C:5]4[C:6](=[N:7][CH:8]=[CH:9][CH:10]=4)[C:2]=3[O:28][CH3:27])=[C:12]([CH3:26])[N:13]=2)[N:16]=[C:17]([CH3:25])[CH:18]=1)[CH2:23][CH3:24])[CH3:22]
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참가 물질

5

반응물 2

HCID 10942334Sodium MethoxideHCID 577526393-(3-Bromo-thieno[3,2-b]pyridin-2-yl)-8-(1-ethyl-propyl)-2,6-dimethyl-imidazo[1,2-b]pyridazine

생성물 1

HCID 577525918-(1-Ethyl-propyl)-3-(3-methoxy-thieno[3,2-b]pyridin-2-yl)-2,6-dimethyl-imidazo[1,2-b]pyridazine수율 45%

시약·촉매·용매 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)촉매
HCID 887
Methanol
용매

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온도
120 °C

실험 절차

50 mg of 3-(3-Bromo-thieno[3,2-b]pyridin-2-yl)-8-(1-ethyl-propyl)-2,6-dimethyl-imidazo[1,2-b]pyridazine (0.12 mmol) and 13 mg of sodium methoxide (0.24 mmol) and 22 mg of copper (I) iodide (0.12 mmol) are placed into 4 ml reaction vial with 3.0 ml of dry MeOH. The reaction vial is capped with a Teflon cap and heated at 120° C. overnight. The reaction mixture is filtered, and water and CH2Cl2 are added. The separated CH2Cl2 is dried over Na2SO4 and evaporated. The crude product is applied onto a silica-gel chromatography column (1st column; Hexane:AcOEt:2M NH3 in MeOH=20:4:1, 2nd column; CH2Cl2:Hexane:Acetnitrile=5:4:1) to give the title compound 20 mg (45%). mass spectrum (m/e): 381; 1H-NMR (CDCl3): 8.72 (m, 1H), 8.10 (m, 1H), 7.29 (dd, 1H, J=4.6 Hz, 8.3 Hz), 6.72 (s, 1H), 4.03 (s, 3H), 3.34 (m, 1H), 2.55 (s, 3H), 2.54 (s, 3H), 1.84 (m, 4H), 0.88 (t, 6H, J=7.6 Hz) ppm.

후처리

  1. customThe reaction
  2. customcap
  3. filtrationThe reaction mixture is filtered
  4. additionwater and CH2Cl2 are added
  5. dry with materialThe separated CH2Cl2 is dried over Na2SO4
  6. customevaporated

출처 및 근거

ORD 기록
ord-8d33ba9f857e444ba03fcd609030cb20
출처 데이터셋
uspto-grants-2009_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07557103B2

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