Potassium Carbonate → HCID 14329994、化合物

反応式

[Cl:1][C:2]1[C:3]([OH:15])=[C:4]([CH2:12][CH2:13][CH3:14])[C:5]([OH:11])=[C:6]([C:8](=[O:10])[CH3:9])[CH:7]=1.[CH3:16][O:17][C:18](=[O:38])[CH2:19][O:20][C:21]1[CH:26]=[CH:25][C:24]([C:27](=[O:29])[CH3:28])=[C:23]([O:30][CH2:31][CH2:32][CH2:33]Br)[C:22]=1[CH2:35][CH2:36][CH3:37].C(=O)([O-])[O-].[K+].[K+]>CC(C)=O>[CH3:16][O:17][C:18](=[O:38])[CH2:19][O:20][C:21]1[CH:26]=[CH:25][C:24]([C:27](=[O:29])[CH3:28])=[C:23]([O:30][CH2:31][CH2:32][CH2:33][O:15][C:3]2[C:2]([Cl:1])=[CH:7][C:6]([C:8](=[O:10])[CH3:9])=[C:5]([OH:11])[C:4]=2[CH2:12][CH2:13][CH3:14])[C:22]=1[CH2:35][CH2:36][CH3:37]

参加物

実験手順

A mixture of 2 g (0.0088 mol) of 1-(5-chloro-2,4-dihydroxy-3-propylphenyl)ethanone, 3.39 g (0.0088 mol) of [4-acetyl-3-(3-bromopropoxy)-2-propylphenoxy]acetic acid methyl ester and 1.8 g (0.013 mol) of anhydrous potassium carbonate in 150 ml of anhydrous acetone was stirred at reflux for 20 hours. An additional 1.0 g of potassium carbonate was added and reflux was continued for a total of 35 hours. The hot reaction mixture was filtered and filtrate was concentrated in vacuo to an oil which was dissolved in ethyl acetate and washed with 1N sodium hydroxide and sodium chloride solution. The crude oil obtained on concentration of the ethyl acetate solution was purified by HPLC, eluting with 30% ethyl acetate in hexane to yield 2.7 g (58% yield) of [4-acetyl-3-[3-(4-acetyl-6-chloro-3-hydroxy-2-propylphenoxy)propoxy]-2-propylphenoxy]acetic acid methyl ester as a pale yellow oil.