Toluene → (E)-ethyl 3-(5-hydroxy-[1,1'-biphenyl]-2-yl)acrylate

HRID 2069636

反応式

HRID 2069636 の反応式
[OH:1][C:2]1[CH:7]=[C:6]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[C:5]([CH:14]=O)=[CH:4][CH:3]=1.[C:16]([CH:19]=P(C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)([OH:18])=[O:17].[C:39]1(C)C=CC=C[CH:40]=1>>[OH:1][C:2]1[CH:3]=[CH:4][C:5](/[CH:14]=[CH:19]/[C:16]([O:18][CH2:39][CH3:40])=[O:17])=[C:6]([C:8]2[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=2)[CH:7]=1

参加物

4

反応物 3

HCID 1140TolueneHCID 10870911Carboxymethylene triphenylphosphoraneHCID 573034645-Hydroxy-[1,1'-biphenyl]-2-carbaldehyde

生成物 1

HCID 58566652(E)-ethyl 3-(5-hydroxy-[1,1'-biphenyl]-2-yl)acrylate

実験手順

A solution of 5-hydroxy-[1,1′-biphenyl]-2-carbaldehyde (651) (292 mg, 1.47 mmol) and (carboxymethylene)-triphenylphosphorane (564.5 mg, 1.62 mmol) in toluene (15 mL) was refluxed for 24 hours. The reaction was concentrated in vacuo and was purified by flash column chromatography on silica gel with hexanes and EtOAc (30%) to give (E)-ethyl 3-(5-hydroxy-[1,1′-biphenyl]-2-yl)acrylate (652).

後処理

  1. concentrationThe reaction was concentrated in vacuo
  2. customwas purified by flash column chromatography on silica gel with hexanes and EtOAc (30%)

出典と根拠

ORDレコード
ord-73a19d5aa75645cda34aa78636ac221c
出典データセット
uspto-grants-2012_10
特許番号
US08299117B2

関連ノート

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