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Dichloromethane → 5-Methyl-4-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenylsulphanylmethyl]-furan-2-carboxylic acid methyl ester

HRID 490398
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인쇄 미리보기

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HRID 490398 반응식
ClCCl.[CH3:4][C:5]1([CH3:12])[C:9]([CH3:11])([CH3:10])[O:8][BH:7][O:6]1.[CH3:13][O:14][C:15]([C:17]1[O:18][C:19]([CH3:31])=[C:20]([CH2:22][S:23][C:24]2[CH:29]=[CH:28][C:27](Br)=[CH:26][CH:25]=2)[CH:21]=1)=[O:16]>O1CCCC1.O1CCOCC1>[CH3:13][O:14][C:15]([C:17]1[O:18][C:19]([CH3:31])=[C:20]([CH2:22][S:23][C:24]2[CH:29]=[CH:28][C:27]([B:7]3[O:8][C:9]([CH3:11])([CH3:10])[C:5]([CH3:12])([CH3:4])[O:6]3)=[CH:26][CH:25]=2)[CH:21]=1)=[O:16]
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참가 물질

6

반응물 3

HCID 6344DichloromethaneHCID 27347684,4,5,5-Tetramethyl[1,3,2]dioxaborolaneHCID 588241724-(4-Bromo-phenylsulphanylmethyl)-5-methyl-furan-2-carboxylic acid methyl ester

생성물 1

HCID 588241845-Methyl-4-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenylsulphanylmethyl]-furan-2-carboxylic acid methyl ester

시약·촉매·용매 2

HCID 8028Tetrahydrofuran
용매
HCID 312751,4-Dioxane용매

반응 조건

온도
100 °C

실험 절차

[1,1′-Bis(diphenylphosphino)ferrocene]dichloropalladium(II) complex with dichloromethane (1:1) (30 mg) and 4,4,5,5-tetramethyl-[1,3,2]dioxaborolan (2.34 ml of a 1M solution in tetrahydrofuran) were added to a degassed solution of 4-(4-bromo-phenylsulphanylmethyl)-5-methyl-furan-2-carboxylic acid methyl ester (150) (400 mg, 1.17 mmoles) in 1,4-dioxan (120 ml). The mixture was heated at 100° C., under an argon atmosphere, for 20 hours, cooled and evaporated. The residue was partitioned between ethyl acetate and water, and the organic phase washed with brine and dried (MgSO4). After evaporation of the solvent the residue was purified by flash chromatography, using heptane/ethyl acetate 9:1 v/v as eluent, to afford compound 151 (212 mg) as a colourless oil.

후처리

  1. temperaturecooled
  2. customevaporated
  3. customThe residue was partitioned between ethyl acetate and water
  4. washthe organic phase washed with brine
  5. dry with materialdried (MgSO4)
  6. customAfter evaporation of the solvent the residue
  7. customwas purified by flash chromatography

출처 및 근거

ORD 기록
ord-a797fdbecb6b4330bdf6e9b9e19158df
출처 데이터셋
uspto-grants-2009_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07528157B2

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