Sodium Carbonate → 5-(6,7-Dihydropyrido[3,2-b]thieno[2,3-d]oxepin-9-yl)pyridin-2-nitrile

HRID 1949867노트

반응식

HRID 1949867 반응식
Br[C:2]1[S:15][C:5]2[C:6]3[N:14]=[CH:13][CH:12]=[CH:11][C:7]=3[O:8][CH2:9][CH2:10][C:4]=2[CH:3]=1.B1([C:25]2[CH:30]=[CH:29][C:28]([C:31]#[N:32])=[N:27][CH:26]=2)OC(C)(C)C(C)(C)O1.C(=O)([O-])[O-].[Na+].[Na+]>C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.Cl[Pd]Cl.C(#N)C>[N:14]1[C:6]2[C:5]3[S:15][C:2]([C:25]4[CH:30]=[CH:29][C:28]([C:31]#[N:32])=[N:27][CH:26]=4)=[CH:3][C:4]=3[CH2:10][CH2:9][O:8][C:7]=2[CH:11]=[CH:12][CH:13]=1

참가 물질

6

반응물 3

HCID 10340Sodium CarbonateHCID 164141882-Cyanopyridine-5-boronic acid pinacol esterHCID 579004919-Bromo-6,7-dihydropyrido[3,2-b]thieno[2,3-d]oxepine

생성물 1

HCID 668690225-(6,7-Dihydropyrido[3,2-b]thieno[2,3-d]oxepin-9-yl)pyridin-2-nitrile

시약·촉매·용매 2

HCID 6102075Dichlorobis(triphenylphosphine)palladium촉매HCID 6342Acetonitrile용매

실험 절차

A mixture of 80 mg (0.3 mmol) of 9-bromo-6,7-dihydro-pyrido[3,2-b]thieno[2,3-d]oxepine, 78.3 (0.34 mmol), 2-cyanopyridine-5-boronic acid pinacole ester, and 10 mg (0.014 mmol) of bis(triphenylphosphine)palladium (II) chloride in 0.35 ml (0.35 mmol) of aqueous 1 M solution of sodium carbonate and 4 ml of acetonitrile was degassed and microwaved on 200 Wt at 140° C. for 30 min. the reaction mixture was filtered through celite and partitioned between ethyl acetate and water. The organic layer was washed with water, brine dried over sodium sulfate and concentrated in vacuum. The residue was purified on a 4 g silica column eluting with 10% of methanol in dichloromethane to give 5-(6,7-dihydropyrido[3,2-b]thieno[2,3-d]oxepin-9-yl)pyridin-2-nitrile. Yield 27 mg (30%). MS: (ESI+) 306.1

후처리

  1. customwas degassed
  2. custommicrowaved on 200 Wt at 140° C. for 30 min. the reaction mixture
  3. filtrationwas filtered through celite
  4. custompartitioned between ethyl acetate and water
  5. washThe organic layer was washed with water, brine
  6. dry with materialdried over sodium sulfate
  7. concentrationconcentrated in vacuum
  8. customThe residue was purified on a 4 g silica column
  9. washeluting with 10% of methanol in dichloromethane

출처 및 근거

ORD 기록
ord-9b0decccd55d401dae322e1cb7f2b9d6
출처 데이터셋
uspto-grants-2013_03
특허 번호
US08399690B2

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