4-Hydroxybenzaldehyde → HCID 58097238、化合物

HRID 2092230ノート

反応式

HRID 2092230 の反応式
[OH:1][C:2]1[CH:9]=[CH:8][C:5]([CH:6]=[O:7])=[CH:4][CH:3]=1.C(=O)([O-])[O-].[K+].[K+].[CH2-:16][C:17]([CH3:19])=[O:18].Cl[CH2:21][C@@H:22]([OH:25])[CH2:23]O.O>CN(C=O)C>[CH3:16][C:17]1([CH3:19])[O:25][C@H:22]([CH2:23][O:1][C:2]2[CH:9]=[CH:8][C:5]([CH:6]=[O:7])=[CH:4][CH:3]=2)[CH2:21][O:18]1

参加物

6

反応物 4

HCID 1264-HydroxybenzaldehydeHCID 962WaterHCID 11430Potassium CarbonateHCID 178521079HCID 178521079、化合物

生成物 1

HCID 58097238HCID 58097238、化合物

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
160 °C

実験手順

31.2 g (255.4 mmol) of 4-hydroxybenzaldehyde are initially charged in 400 ml of dry DMF, and 105.7 g (766.1 mmol) of potassium carbonate and 50.0 g (332.0 mmol) of (S)-(−)-3-chloro-1,2-propanediol acetonide are added at RT. The mixture is stirred at 160° C. for 16 h. 4000 ml of water are then added, and the mixture is extracted three times with in each case 500 ml of ethyl acetate. The combined organic phases are washed in each case once with 500 ml water and 500 ml of sat. aqueous sodium chloride solution. After drying over magnesium sulfate, the solvent is removed on a rotary evaporator and the residue is purified by column chromatography on silica gel 60 (mobile phase gradient: ethyl acetate/petroleum ether 1:9→2:8).

後処理

  1. extractionthe mixture is extracted three times with in each case 500 ml of ethyl acetate
  2. washThe combined organic phases are washed in each case once with 500 ml water and 500 ml of sat. aqueous sodium chloride solution
  3. dry with materialAfter drying over magnesium sulfate
  4. customthe solvent is removed on a rotary evaporator
  5. customthe residue is purified by column chromatography on silica gel 60 (mobile phase gradient: ethyl acetate/petroleum ether 1:9→2:8)

出典と根拠

ORDレコード
ord-56b1055043594a15b4791c7dd93df15e
出典データセット
uspto-grants-2013_05
特許番号
US08440700B2

反応ノート

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