Phenol → 3-Bromodiphenyl ether

HRID 222501

반응식

HRID 222501 반응식
C(N[C@H](C1C=CC=CC=1)C)CC=C.Br[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=1[Br:21].[C:22]1([OH:28])[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>CN1C(=O)CCC1.[Cu-]=O>[Br:21][C:16]1[CH:17]=[CH:18][CH:19]=[C:20]([O:28][C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)[CH:15]=1

참가 물질

7

반응물 4

HCID 996PhenolHCID 10796Cesium carbonateHCID 114141,2-DibromobenzeneHCID 10559173But-3-enyl-((S)-1-phenyl-ethyl)-amine

생성물 1

HCID 961653-Bromodiphenyl ether수율 53%

시약·촉매·용매 2

HCID 178419072HCID 178419072, 화합물촉매HCID 13387N-methyl-2-pyrrolidone용매

반응 조건

온도
195 °C

실험 절차

1-Bromo-3-phenoxy-benzene (A) A mixture of dibromobenzene (3 g, 12.75 mmol), phenol (1 g, 10.6 mmol), copper(I) oxide (152 mgs, 1 mmol), and cesium carbonate (3.46 g, 10.6 mmol) in 8 mL of NMP is heated at 195° C. for 20 minutes in a microwave. The heterogeneous mixture is filtered through a bed of Celite and the residue is washed with EtOAc (1×20 mL). The filtrate is diluted with 1N NaOH (200 mL) and extracted with EtOAc (3×100 mL). The organics were combined, dried over Na2SO4, filtered and concentrated under reduced pressures to give crude product as a yellow oil which is purified by column chromatography (100% hexanes) to give 1-bromo-3-phenoxy-benzene as a colorless oil (1.4 g, 53%). LCMS m/z 250 (M+1).

후처리

  1. filtrationThe heterogeneous mixture is filtered through a bed of Celite
  2. washthe residue is washed with EtOAc (1×20 mL)
  3. additionThe filtrate is diluted with 1N NaOH (200 mL)
  4. extractionextracted with EtOAc (3×100 mL)
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressures
  8. customto give crude product as a yellow oil which
  9. customis purified by column chromatography (100% hexanes)

출처 및 근거

ORD 기록
ord-f99cacf8174a426aaa164c36ef6fbb4d
출처 데이터셋
uspto-grants-2012_06
특허 번호
US08207183B2

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