Methanol → Methyl 2-(3-bromo-4-hydroxyphenyl)acetate

HRID 1454513ノート

反応式

HRID 1454513 の反応式
[Br:1][C:2]1[CH:3]=[C:4]([CH2:9][C:10]([OH:12])=[O:11])[CH:5]=[CH:6][C:7]=1[OH:8].[CH3:13]O>S(Cl)(Cl)=O>[CH3:13][O:11][C:10](=[O:12])[CH2:9][C:4]1[CH:5]=[CH:6][C:7]([OH:8])=[C:2]([Br:1])[CH:3]=1

参加物

4

反応物 2

HCID 887MethanolHCID 27696283-Bromo-4-hydroxyphenylacetic acid

生成物 1

HCID 10634081Methyl 2-(3-bromo-4-hydroxyphenyl)acetate

試薬・触媒・溶媒 1

HCID 24386Thionyl Chloride触媒

実験手順

3-Bromo-4-hydroxyphenylacetic acid (12.0 g, 0.052 mol) was dissolved in methanol and the solution was stirred at room temperature while thionyl chloride (ten drops) was added. The mixture was stirred for two hours and then concentrated under reduced pressure. The residue was taken up in saturated aqueous sodium bicarbonate and the solution extracted with diethyl ether (×3). The organic layers were collected, washed with water and brine, dried over MgSO4 and concentrated in vacuo to give methyl-3-bromo-4-hydroxyphenylacetate as a golden oil (12.6 g).

後処理

  1. additionwas added
  2. concentrationconcentrated under reduced pressure
  3. extractionthe solution extracted with diethyl ether (×3)
  4. customThe organic layers were collected
  5. washwashed with water and brine
  6. dry with materialdried over MgSO4
  7. concentrationconcentrated in vacuo

出典と根拠

ORDレコード
ord-b3f748fdae274bc7b69aade74ebdbef3
出典データセット
uspto-grants-2009_01
特許番号
US07479502B2

反応ノート

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