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1,4-Dioxane → (1H-benzo[d]imidazol-2-yl)(4-(3-(3,6-dihydro-2H-pyran-4-yl)pyridin-2-yloxy)phenyl)methanone

HRID 1880068
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HRID 1880068 반응식
[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[C:10]([C:12]1[CH:17]=[CH:16][C:15]([O:18][C:19]2[C:24](Br)=[CH:23][CH:22]=[CH:21][N:20]=2)=[CH:14][CH:13]=1)=[O:11].[O:26]1[CH2:31][CH:30]=[C:29](B2OC(C)(C)C(C)(C)O2)[CH2:28][CH2:27]1.C([O-])(=O)C.[K+].O1CCOCC1>CO.O>[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[C:10]([C:12]1[CH:17]=[CH:16][C:15]([O:18][C:19]2[C:24]([C:29]3[CH2:30][CH2:31][O:26][CH2:27][CH:28]=3)=[CH:23][CH:22]=[CH:21][N:20]=2)=[CH:14][CH:13]=1)=[O:11]
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참가 물질

7

반응물 4

HCID 312751,4-DioxaneHCID 517044Potassium AcetateHCID 112180533,6-Dihydro-2H-pyran-4-boronic acid pinacol esterHCID 59326957(1H-benzo[d]imidazol-2-yl)(4-(3-bromopyridin-2-yloxy)phenyl)methanone

생성물 1

HCID 59327026(1H-benzo[d]imidazol-2-yl)(4-(3-(3,6-dihydro-2H-pyran-4-yl)pyridin-2-yloxy)phenyl)methanone

시약·촉매·용매 2

HCID 887
Methanol
용매
HCID 962Water용매

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온도
100 °C

실험 절차

A clear 150 ml pressure tube was charged with (1H-benzo[d]imidazol-2-yl)(4-(3-bromopyridin-2-yloxy)phenyl)methanone (1.5 g, 3.80 mmol), 2-(3,6-dihydro-2H-pyran-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (0.959 g, 4.57 mmol), Bis-[4-(di-tert-butylphosphino)-N,N-dimethylbenzenamine]Palladium dichloride (2.69 g, 3.80 mmol), potassium acetate (0.373 g, 3.80 mmol), Dioxane (9 mL) and Water (1.000 mL). The reaction flask was flushed with nitrogen and capped. The reaction was heated to 100° C. for 16 hours. The reaction was then cooled down to RT and partitioned with ethyl acetate (50 ml) and water (50 ml). The organic layer was washed (2×) with an aqueous saturated solution of sodium bicarbonate, then with water and then brine. The organic layer was then dried with sodium sulfate and then filtered. The volatile were reduced to a smaller volume and the solid that precipitated out was filtered off. The cake obtained was suspended in hot MeOH, filtered and dried to give (1H-benzo[d]imidazol-2-yl)(4-(3-(3,6-dihydro-2H-pyran-4-yl)pyridin-2-yloxy)phenyl)methanone as a yellow solid. MS (ESI, pos. ion) m/z: 397.9 (M+1).

후처리

  1. customThe reaction flask was flushed with nitrogen
  2. customcapped
  3. temperatureThe reaction was then cooled down to RT
  4. custompartitioned with ethyl acetate (50 ml) and water (50 ml)
  5. washThe organic layer was washed (2×) with an aqueous saturated solution of sodium bicarbonate
  6. dry with materialThe organic layer was then dried with sodium sulfate
  7. filtrationfiltered
  8. customthe solid that precipitated out
  9. filtrationwas filtered off
  10. customThe cake obtained
  11. filtrationfiltered
  12. customdried

출처 및 근거

ORD 기록
ord-6247832a037c4fe0acdf8e782e8995f6
출처 데이터셋
uspto-grants-2012_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08318718B2

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