Methyl 4-(4-methoxyphenoxy)benzoate → HCID 67309982、化合物

HRID 889641ノート

反応式

HRID 889641 の反応式
[B-]([S+](C)C)(F)(F)F.C[O:9][C:10]1[CH:26]=[CH:25][C:13]([O:14][C:15]2[CH:24]=[CH:23][C:18]([C:19]([O:21][CH3:22])=[O:20])=[CH:17][CH:16]=2)=[CH:12][CH:11]=1>C(Cl)Cl>[CH3:22][O:21][C:19](=[O:20])[C:18]1[CH:17]=[CH:16][C:15]([O:14][C:13]2[CH:25]=[CH:26][C:10]([OH:9])=[CH:11][CH:12]=2)=[CH:24][CH:23]=1.[CH3:22][O:21][C:19](=[O:20])[C:18]1[CH:17]=[CH:16][C:15]([O:14][C:13]2[CH:25]=[CH:26][C:10]([OH:9])=[CH:11][CH:12]=2)=[CH:24][CH:23]=1

参加物

4

反応物 2

HCID 28911129Methyl 4-(4-methoxyphenoxy)benzoateHCID 71311438Dimethylsulfonio(trifluoro)boranuide

生成物 1

HCID 67309982HCID 67309982、化合物

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

Boron fluoride-dimethyl sulfide complex [CAS: 353-43-5] (15.64 ml, 148.67 mmol) was added dropwise to a stirred solution of methyl 4-(4′-methoxyphenoxy)benzoate [CAS: 38342-84-6] (1.28 g, 4.9 mmol) in DCM (100 ml) cooled in an ice-water bath under nitrogen atmosphere. The resulting mixture was stirred for 5 hours. The reaction mixture was washed with water and then extracted with DCM. The organic layer was separated and dried (Na2SO4) and the solvent was evaporated till dryness. The residue was purified by column chromatography (silica gel; 0-10% EtOAc/DCM as eluent). The desired fractions were collected and evaporated in vacuo to yield intermediate D24 (0.89 g, 74%).

後処理

  1. temperaturecooled in an ice-water bath under nitrogen atmosphere
  2. washThe reaction mixture was washed with water
  3. extractionextracted with DCM
  4. customThe organic layer was separated
  5. dry with materialdried (Na2SO4)
  6. customthe solvent was evaporated till dryness
  7. customThe residue was purified by column chromatography (silica gel; 0-10% EtOAc/DCM as eluent)
  8. customThe desired fractions were collected
  9. customevaporated in vacuo
  10. customto yield intermediate D24 (0.89 g, 74%)

出典と根拠

ORDレコード
ord-7a9e6a26b4f64e559bdafd972241730b
出典データセット
uspto-grants-2012_08
特許番号
US08252937B2

反応ノート

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