Potassium Carbonate → 5-[4-Difluoromethoxy-3-methoxy-2-(3-methoxy-2,2-dimethyl-propoxy)-phenyl]-3H-isobenzofuran-1-one

HRID 2171085노트

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HRID 2171085 반응식
[F:1][CH:2]([F:23])[O:3][C:4]1[CH:9]=[CH:8][C:7]([C:10]2[CH:11]=[C:12]3[C:16](=[CH:17][CH:18]=2)[C:15](=[O:19])[O:14][CH2:13]3)=[C:6]([OH:20])[C:5]=1[O:21][CH3:22].[C:24](=[O:27])([O-])[O-].[K+].[K+].Br[CH2:31][C:32]1([CH3:36])[CH2:35]O[CH2:33]1>C(#N)C>[F:23][CH:2]([F:1])[O:3][C:4]1[CH:9]=[CH:8][C:7]([C:10]2[CH:11]=[C:12]3[C:16](=[CH:17][CH:18]=2)[C:15](=[O:19])[O:14][CH2:13]3)=[C:6]([O:20][CH2:31][C:32]([CH3:36])([CH3:35])[CH2:33][O:27][CH3:24])[C:5]=1[O:21][CH3:22]

참가 물질

5

반응물 3

HCID 11430Potassium CarbonateHCID 144860Oxetane, 3-(bromomethyl)-3-methyl-HCID 674684075-(4-(difluoromethoxy)-2-hydroxy-3-methoxyphenyl)isobenzofuran-1(3H)-one

생성물 1

HCID 674676775-[4-Difluoromethoxy-3-methoxy-2-(3-methoxy-2,2-dimethyl-propoxy)-phenyl]-3H-isobenzofuran-1-one수율 30%

시약·촉매·용매 1

HCID 6342Acetonitrile용매

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온도
80 °C

실험 절차

To a stirring solution of 5-(4-(difluoromethoxy)-2-hydroxy-3-methoxyphenyl)isobenzofuran-1(3H)-one (80 mg, 0.25 mmol) in acetonitrile (10 mL), was added potassium carbonate (103.5 mg, 0.75 mmol) and 3-bromomethyl-3-methyl-oxetane (123 mg, 0.75 mmol) and the resultant reaction mixture was heated to 80° C. for 3 h. The reaction mixture was cooled to RT, filtered through celite and the filtrate was concentrated under reduced pressure. The residue was purified by column chromatography (silica gel, 0-40° A) ethyl acetate in pet ether) to afford title compound as a solid (30 mg, 30%).

후처리

  1. customthe resultant reaction mixture
  2. temperatureThe reaction mixture was cooled to RT
  3. filtrationfiltered through celite
  4. concentrationthe filtrate was concentrated under reduced pressure
  5. customThe residue was purified by column chromatography (silica gel, 0-40° A) ethyl acetate in pet ether)

출처 및 근거

ORD 기록
ord-a19489d50bc24369a79035c0257075d1
출처 데이터셋
uspto-grants-2015_06
특허 번호
US09051290B2

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