Potassium Carbonate → 1-Benzyl-4-chloro-2-methoxybenzene

HRID 272744노트

반응식

HRID 272744 반응식
Br[CH2:2][C:3]1[CH:8]=[CH:7][C:6]([Cl:9])=[CH:5][C:4]=1[O:10][CH3:11].[C:12]1(B(O)O)[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1.C([O-])([O-])=O.[K+].[K+]>O1CCOCC1.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>[CH2:2]([C:3]1[CH:8]=[CH:7][C:6]([Cl:9])=[CH:5][C:4]=1[O:10][CH3:11])[C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1

참가 물질

6

반응물 3

HCID 11430Potassium CarbonateHCID 66827Phenylboronic AcidHCID 223274741-(Bromomethyl)-4-chloro-2-methoxybenzene

생성물 1

HCID 692167101-Benzyl-4-chloro-2-methoxybenzene수율 18.4%

시약·촉매·용매 2

HCID 178418397HCID 178418397, 화합물촉매HCID 312751,4-Dioxane용매

실험 절차

1-Bromomethyl-4-chloro-2-methoxy-benzene (50 mg, 0.21 mmol), phenyl boronic acid (28 mg, 0.23 mmol), Pd(PPh3)4 (24 mg, 0.021 mmol) and K2CO3 (87 mg, 0.63 mmol) were combined in dioxane, purged with N2, and heated to reflux for 16 hours. The mixture was then partitioned between ethyl acetate and water. The organic layer was washed with brine, dried (MgSO4), filtered, and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel eluting with 4:1 hexanes/ethyl acetate to provide 9 mg (18%) of the title compound. MS (ESI) m/e 233 (M+H)+.

후처리

  1. custompurged with N2
  2. temperatureheated
  3. temperatureto reflux for 16 hours
  4. customThe mixture was then partitioned between ethyl acetate and water
  5. washThe organic layer was washed with brine
  6. dry with materialdried (MgSO4)
  7. filtrationfiltered
  8. concentrationconcentrated under vacuum
  9. customThe residue was purified by flash column chromatography on silica gel eluting with 4:1 hexanes/ethyl acetate

출처 및 근거

ORD 기록
ord-cd67fa8b66294287b5b57e87a2dce8c8
출처 데이터셋
uspto-grants-2008_11
특허 번호
US07456169B2

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