Benzenesulfonic acid, 4-methyl-, compd. with pyridine (1:1) → 4-(4-Hydroxymethylphenyl)cyclohexanone

HRID 1468769ノート

反応式

HRID 1468769 の反応式
C([Si]([O:8][CH2:9][C:10]1[CH:15]=[CH:14][C:13]([CH:16]2[CH2:25][CH2:24][C:19]3(OCC[O:20]3)[CH2:18][CH2:17]2)=[CH:12][CH:11]=1)(C)C)(C)(C)C.C1(C)C=CC(S([O-])(=O)=O)=CC=1.[NH+]1C=CC=CC=1>CC(C)=O.O>[OH:8][CH2:9][C:10]1[CH:11]=[CH:12][C:13]([CH:16]2[CH2:25][CH2:24][C:19](=[O:20])[CH2:18][CH2:17]2)=[CH:14][CH:15]=1

参加物

5

反応物 2

HCID 466102Benzenesulfonic acid, 4-methyl-, compd. with pyridine (1:1)HCID 68160088HCID 68160088、化合物

生成物 1

HCID 193813914-(4-Hydroxymethylphenyl)cyclohexanone収率 62%

試薬・触媒・溶媒 2

HCID 180Acetone溶媒HCID 962Water溶媒

実験手順

To a solution of tert-butyl-[4-(1,4-dioxa-spiro[4.5]dec-8-yl)benzyloxy]dimethylsilane (12.1 g, 33.3 mmol) in acetone (12 ml) and water (1.2 ml) was added pyridinium p-toluenesulfonate (2.51 g, 9.99 mmol) at room temperature. The mixture was refluxed for 3 hours. The mixture was partitioned between water and ethyl acetate. The organic layer was washed with saturated aqueous sodium hydrogen carbonate, dried over sodium sulfate, and concentrated in vacuo. The residue was purified by silica gel column chromatography (eluent; hexane/ethyl acetate=60/40) to afford 4-(4-hydroxymethylphenyl)cyclohexanone as a colorless solid (4.21 g, 20.6 mmol, 62%).

後処理

  1. temperatureThe mixture was refluxed for 3 hours
  2. customThe mixture was partitioned between water and ethyl acetate
  3. washThe organic layer was washed with saturated aqueous sodium hydrogen carbonate
  4. dry with materialdried over sodium sulfate
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by silica gel column chromatography (eluent; hexane/ethyl acetate=60/40)

出典と根拠

ORDレコード
ord-94209a6fbf184fb3a7b26c6517f76eac
出典データセット
uspto-grants-2015_04
特許番号
US09006232B2

反応ノート

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