Triethylamine → HCID 22628477、化合物

HRID 278479

反応式

HRID 278479 の反応式
P(CCCC)(CCCC)CCCC.CCN(CC)CC.[CH2:21]([OH:26])[CH:22]([OH:25])[CH:23]=[CH2:24].Br[C:28]1[CH:29]=[C:30]([CH2:34][C:35]([O:37][CH3:38])=[O:36])[CH:31]=[CH:32][CH:33]=1>CN(C=O)C.O>[OH:26][CH2:21][C:22](=[O:25])[CH2:23][CH2:24][C:32]1[CH:31]=[C:30]([CH2:34][C:35]([O:37][CH3:38])=[O:36])[CH:29]=[CH:28][CH:33]=1

参加物

7

反応物 4

HCID 8471TriethylamineHCID 103383-Butene-1,2-diolHCID 13831TributylphosphineHCID 11746402Methyl 2-(3-bromophenyl)acetate

生成物 1

HCID 22628477HCID 22628477、化合物収率 24.4%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒

反応条件

温度
100 °C

実験手順

To a stirred solution of Pd (OAc)2 (75 mg, 0.34 mmol), nBu3P (136 mg, 0.67 mmol), and Et3N (442 mg, 4.37 mmol) in DMF (10 ml) was added 3-butene-1,2-diol (296 mg, 3.36 mmol) followed by methyl 3-bromophenylacetate (1.0 g, 4.37 mmol), and the reaction mixture was stirred at 100° C. for 5 h. The reaction mixture was poured into water (100 ml) and extracted with ethyl acetate. The organic layer was washed with brine, dried (magnesium sulfate) and evaporated in vacuo. The residue was purified by silica gel (25 g) column chromatography eluting with toluene/ethyl acetate (20:1) to give methyl 3-(4-hydroxy-3-oxobutyl)phenylacetate (193 mg, 24.4%) as an oil.

後処理

  1. extractionextracted with ethyl acetate
  2. washThe organic layer was washed with brine
  3. dry with materialdried (magnesium sulfate)
  4. customevaporated in vacuo
  5. customThe residue was purified by silica gel (25 g) column chromatography
  6. washeluting with toluene/ethyl acetate (20:1)

出典と根拠

ORDレコード
ord-083726f3412d4d3c8c9aca3e9842e928
出典データセット
uspto-grants-2002_03
特許番号
US06359145B1

関連ノート

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