反応式
F[C:2]1[CH:10]=[C:9]([OH:11])[CH:8]=[CH:7][C:3]=1[C:4]([OH:6])=[O:5].[OH:12][C:13]1C=CC(C(O)=O)=C[CH:14]=1.C(OC1C=CC(C(Cl)=O)=CC=1)(=O)CCCCCCCCC>>[C:13]([O:11][C:9]1[CH:8]=[CH:7][C:3]([C:4]([OH:6])=[O:5])=[CH:2][CH:10]=1)(=[O:12])[CH3:14]参加物
実験手順
p-Acetoxybenzoic acid was prepared in the same manner as in Example 1(2) except that the 2-fluoro-4-hydroxybenzoic acid was replaced with p-hydroxybenzoic acid. The p-hydroxybenzoic acid was chlorinated in the same manner as in the above (2), to obtain an acid chloride. 1.8 Grams of the acid chloride and 2 g of the (R)-(+)-2-fluoro-4-hydroxy-1-(1-trifluoromethyl-6-ethoxyhexyloxycarbonyl)benzene obtained in Example 1 were dissolved in 50 ml of toluene, 6 ml of pyridine was added, and the mixture was stirred for 1 day. The reaction mixture was poured into water, consecutively washed with a hydrochloric acid aqueous solution, with a sodium hydroxide aqueous solution and with water, and dried over anhydrous sodium sulfate, and the solvent was distilled off to give a crude product. The crude product was purified by silica gel column chromatography(eluting solvent: ethyl acetate/hexane=15/85), to give 2.8 g of an end product.
出典と根拠
- ORDレコード
- ord-d965967cbe69411f9fd760ac1f990dfb
- 出典データセット
- uspto-grants-1998_03
- 特許番号
- US05723069
関連ノート
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