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Dimethylformamide → Methyl 5-(benzyloxy)-2-bromo-2',4'-difluorobiphenyl-4-carboxylate

HRID 2272480
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HRID 2272480 반응식
[Br:1]N1C(=O)NC(=O)N(Br)C1=O.CN(C=O)C.[CH2:17]([O:24][C:25]1[CH:26]=[C:27]([C:35]2[CH:40]=[CH:39][C:38]([F:41])=[CH:37][C:36]=2[F:42])[CH:28]=[CH:29][C:30]=1[C:31]([O:33][CH3:34])=[O:32])[C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1>O>[CH2:17]([O:24][C:25]1[C:30]([C:31]([O:33][CH3:34])=[O:32])=[CH:29][C:28]([Br:1])=[C:27]([C:35]2[CH:40]=[CH:39][C:38]([F:41])=[CH:37][C:36]=2[F:42])[CH:26]=1)[C:18]1[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 6228DimethylformamideHCID 192912Dibromoisocyanuric acidHCID 117992142Methyl 3-(benzyloxy)-2',4'-difluorobiphenyl-4-carboxylate

생성물 1

HCID 117992213Methyl 5-(benzyloxy)-2-bromo-2',4'-difluorobiphenyl-4-carboxylate수율 141.6%

시약·촉매·용매 1

HCID 962Water용매

실험 절차

Dibromoisocyanuric acid (15.9 g) was added at room temperature to a DMF (150 mL) solution of methyl 3-(benzyloxy)-2′,4′-difluorobiphenyl-4-carboxylate (28.0 g), and the mixture was stirred overnight at room temperature. Water was added to the reaction mixture at room temperature, followed by extraction with ethyl acetate. The obtained organic layer was washed with water and saturated saline in this order and dried over anhydrous magnesium sulfate, and then, the solvent was distilled off under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate) to obtain the title compound (34.0 g)

후처리

  1. extractionfollowed by extraction with ethyl acetate
  2. washThe obtained organic layer was washed with water and saturated saline in this order
  3. dry with materialdried over anhydrous magnesium sulfate
  4. distillationthe solvent was distilled off under reduced pressure
  5. customThe obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate)

출처 및 근거

ORD 기록
ord-8e3d122e898b40acbe253497d7016339
출처 데이터셋
uspto-grants-2015_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09120777B2

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