Potassium Carbonate → 4-[4-Acetyl-3-[2-[2-[(methylsulfonyl)oxy]ethoxy]-ethoxy]-2-propylphenoxy]butanoic acid ethyl ester

HRID 2164942

反応式

HRID 2164942 の反応式
[CH2:1]([O:3][C:4](=[O:22])[CH2:5][CH2:6][CH2:7][O:8][C:9]1[CH:14]=[CH:13][C:12]([C:15](=[O:17])[CH3:16])=[C:11]([OH:18])[C:10]=1[CH2:19][CH2:20][CH3:21])[CH3:2].[S:23]([O:27][CH2:28][CH2:29][O:30][CH2:31][CH2:32]OS(=O)(=O)C)(=[O:26])(=[O:25])[CH3:24].C(=O)([O-])[O-].[K+].[K+]>CC(C)=O.CN(C)C=O>[CH2:1]([O:3][C:4](=[O:22])[CH2:5][CH2:6][CH2:7][O:8][C:9]1[CH:14]=[CH:13][C:12]([C:15](=[O:17])[CH3:16])=[C:11]([O:18][CH2:32][CH2:31][O:30][CH2:29][CH2:28][O:27][S:23]([CH3:24])(=[O:26])=[O:25])[C:10]=1[CH2:19][CH2:20][CH3:21])[CH3:2]

参加物

6

反応物 3

HCID 11430Potassium Carbonate2 回HCID 147571Diethylene Glycol DimethanesulfonateHCID 14330004Ethyl 4-(4-acetyl-3-hydroxy-2-propylphenoxy)butanoate

生成物 1

HCID 143300094-[4-Acetyl-3-[2-[2-[(methylsulfonyl)oxy]ethoxy]-ethoxy]-2-propylphenoxy]butanoic acid ethyl ester収率 67%

試薬・触媒・溶媒 2

HCID 180Acetone溶媒HCID 6228Dimethylformamide溶媒

実験手順

A mixture of 4 g (0.013 mol) of 4-(4-acetyl-3-hydroxy-2-propylphenoxy)butanoic acid ethyl ester, 17 g (0.065 mol) of diethylene glycol dimesylate and 3.6 g (0.026 mol) of anhydrous potassium carbonate in 80 ml of anhydrous acetone and 40 ml of anhydrous dimethylformamide was stirred at reflux for 20 hours. An additional 1.8 g of potassium carbonate was added and reflux was continued for a total of 44 hours. The reaction mixture was filtered and concentrated in vacuo to an orange oil which was treated with ethyl acetate and sodium chloride solution. The yellow oil obtained on concentration of the ethyl acetate was purified by HPLC, eluting with 15% ethyl acetate/toluene to yield 4.1 g (67% yield) of 4-[4-acetyl-3-[2-[2-[(methylsulfonyl)oxy]ethoxy]-ethoxy]-2-propylphenoxy]butanoic acid ethyl ester as a yellow oil.

後処理

  1. temperatureat reflux for 20 hours
  2. temperaturereflux
  3. customwas continued for a total of 44 hours
  4. filtrationThe reaction mixture was filtered
  5. concentrationconcentrated in vacuo to an orange oil which
  6. additionwas treated with ethyl acetate and sodium chloride solution
  7. customThe yellow oil obtained on concentration of the ethyl acetate
  8. customwas purified by HPLC
  9. washeluting with 15% ethyl acetate/toluene

出典と根拠

ORDレコード
ord-89540108dfe34b4899e1f52f14e30356
出典データセット
uspto-grants-1985_03
特許番号
US04507498

関連ノート

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