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1,4-Dioxane → Methyl 3-[methyl(propan-2-yl)amino]-2-(5-phenylfuran-2-yl)quinoxaline-6-carboxylate

HRID 1403401
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HRID 1403401 반응식
CC1(C)C(C)(C)OB([C:9]2OC=[C:12]([C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=3)[CH:13]=2)O1.Cl[C:22]1[C:31]([N:32]([CH3:36])[CH:33]([CH3:35])[CH3:34])=[N:30][C:29]2[C:24](=[CH:25][CH:26]=[C:27]([C:37]([O:39][CH3:40])=[O:38])[CH:28]=2)[N:23]=1.[O-]P([O-])([O-])=O.[K+].[K+].[K+].[O:49]1CCOC[CH2:50]1>O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:36][N:32]([CH:33]([CH3:35])[CH3:34])[C:31]1[C:22]([C:50]2[O:49][C:12]([C:14]3[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=3)=[CH:13][CH:9]=2)=[N:23][C:24]2[C:29]([N:30]=1)=[CH:28][C:27]([C:37]([O:39][CH3:40])=[O:38])=[CH:26][CH:25]=2
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참가 물질

7

반응물 4

HCID 312751,4-DioxaneHCID 62657Potassium Phosphate, TribasicHCID 457863484,4,5,5-Tetramethyl-2-(4-phenyl-2-furanyl)-1,3,2-dioxaborolaneHCID 86667203Methyl 2-chloro-3-(isopropyl(methyl)amino)quinoxaline-6-carboxylate

생성물 1

HCID 70654220Methyl 3-[methyl(propan-2-yl)amino]-2-(5-phenylfuran-2-yl)quinoxaline-6-carboxylate

시약·촉매·용매 2

HCID 962Water촉매HCID 178418397HCID 178418397, 화합물촉매

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온도
95 °C

실험 절차

To a solution of 4,4,5,5-tetramethyl-2-(4-phenylfuran-2-yl)-1,3,2-dioxaborolane (200 mg, crude) in dioxane (5.5 mL) and water (3 drops) was added methyl 2-chloro-3-[methyl(propan-2-yl)amino]quinoxaline-6-carboxylate (72 mg, 0.25 mmol), K3PO4 (156 mg, 0.73 mmol) and Pd(PPh3)4 (14 mg, 0.01 mmol) with stirring for 1 h at 95° C. in an oil bath which was maintained under an inert atmosphere of nitrogen. The reaction mixture was concentrated under reduced pressure to give the residue, which was purified by silica gel column chromatography eluting with 2% ethyl acetate in petroleum ether to afford methyl 3-[methyl(propan-2-yl)amino]-2-(5-phenylfuran-2-yl)quinoxaline-6-carboxylate as a light yellow solid (50 mg).

후처리

  1. temperaturewas maintained under an inert atmosphere of nitrogen
  2. concentrationThe reaction mixture was concentrated under reduced pressure
  3. customto give the residue, which
  4. customwas purified by silica gel column chromatography
  5. washeluting with 2% ethyl acetate in petroleum ether

출처 및 근거

ORD 기록
ord-34cebae32ac64ca99dfacd89e5c1502a
출처 데이터셋
uspto-grants-2014_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08912188B2

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