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1-methyl-2-(tributylstannyl)-1H-pyrrole → 7-fluoro-5-methyl-2-(1-methyl-1H-pyrrol-2-yl)-6-phenyl-1,3-benzoxazole-4-carbonitrile

HRID 17435
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HRID 17435 반응식
C([Sn]([C:14]1[N:15]([CH3:19])[CH:16]=[CH:17][CH:18]=1)(CCCC)CCCC)CCC.C(C1(C)C(O)=C(C(C)(C)C)C=CC1)(C)(C)C.Cl[C:37]1[O:38][C:39]2[C:40](=[C:42]([C:54]#[N:55])[C:43]([CH3:53])=[C:44]([C:47]3[CH:52]=[CH:51][CH:50]=[CH:49][CH:48]=3)[C:45]=2[F:46])[N:41]=1>Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.C1(C)C=CC=CC=1>[F:46][C:45]1[C:44]([C:47]2[CH:52]=[CH:51][CH:50]=[CH:49][CH:48]=2)=[C:43]([CH3:53])[C:42]([C:54]#[N:55])=[C:40]2[C:39]=1[O:38][C:37]([C:14]1[N:15]([CH3:19])[CH:16]=[CH:17][CH:18]=1)=[N:41]2
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 3

HCID 27693971-methyl-2-(tributylstannyl)-1H-pyrroleHCID 510414292-Chloro-7-fluoro-5-methyl-6-phenyl-1,3-benzoxazole-4-carbonitrileHCID 666371922,6-Di-t-butylcresol

생성물 1

HCID 510399657-fluoro-5-methyl-2-(1-methyl-1H-pyrrol-2-yl)-6-phenyl-1,3-benzoxazole-4-carbonitrile

시약·촉매·용매 2

HCID 178418476
HCID 178418476, 화합물
촉매
HCID 1140Toluene용매

실험 절차

Tributylstannyl-1-methylpyrrole (389 mg, 1.05 mmol), bis(triphenylphosphine)palladium(II) dichloride (49 mg, 0.07 mmol), and a catalytic amount of 2,6-di-tert-butylcresol (2 mg) were added to a toluene (20 ml) solution of 2-chloro-7-fluoro-5-methyl-6-phenyl-1,3-benzoxazole-4-cabonitrile (I-130) (200 mg, 0.70 mol), followed by stirring under heat under nitrogen atmosphere for 3 hours. After cooling, the reaction liquid was filtered, and the solvent of the filtrate was evaporate away under reduced pressure. The resulting residue was subjected to silica gel column chromatography, and eluted with a mixed solvent of n-hexane/ethyl acetate (9:1, v/v→5:1, v/v) to obtain a main product. After washing with isopropyl ether, the entitled compound (50 mg, 22%) was collected by filtration as a pale yellow solid.

후처리

  1. temperatureunder heat under nitrogen atmosphere for 3 hours
  2. temperatureAfter cooling
  3. customthe reaction liquid
  4. filtrationwas filtered
  5. customthe solvent of the filtrate was evaporate away under reduced pressure
  6. washeluted with a mixed solvent of n-hexane/ethyl acetate (9:1, v/v→5
  7. custom1, v/v) to obtain a main product
  8. washAfter washing with isopropyl ether
  9. filtrationthe entitled compound (50 mg, 22%) was collected by filtration as a pale yellow solid

출처 및 근거

ORD 기록
ord-2d23f605678b474eaf1831fc88ee31f9
출처 데이터셋
uspto-grants-2010_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07737166B2

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