Lithium hydroxide, monohydrate → 2-(5-Chloro-6-(2,2,2-trifluoroethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)-3-cyclobutylpropanoic acid

HRID 1512447ノート

反応式

HRID 1512447 の反応式
[Cl:1][C:2]1[CH:3]=[C:4]([CH:24]([CH2:30][CH:31]2[CH2:34][CH2:33][CH2:32]2)[C:25]([O:27]CC)=[O:26])[CH:5]=[C:6]([C:14]2[CH:19]=[CH:18][C:17]([C:20]([F:23])([F:22])[F:21])=[CH:16][CH:15]=2)[C:7]=1[O:8][CH2:9][C:10]([F:13])([F:12])[F:11].O.[OH-].[Li+]>CO.C1COCC1.O>[Cl:1][C:2]1[CH:3]=[C:4]([CH:24]([CH2:30][CH:31]2[CH2:34][CH2:33][CH2:32]2)[C:25]([OH:27])=[O:26])[CH:5]=[C:6]([C:14]2[CH:15]=[CH:16][C:17]([C:20]([F:21])([F:22])[F:23])=[CH:18][CH:19]=2)[C:7]=1[O:8][CH2:9][C:10]([F:12])([F:13])[F:11]

参加物

4

反応物 2

HCID 168937Lithium hydroxide, monohydrateHCID 57995519Ethyl 2-(5-chloro-6-(2,2,2-trifluoroethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)-3-cyclobutylpropanoate

生成物 1

HCID 441319152-(5-Chloro-6-(2,2,2-trifluoroethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)-3-cyclobutylpropanoic acid収率 45%

試薬・触媒・溶媒 1

HCID 21892291Methanol tetrahydrofuran water溶媒

実験手順

A mixture of ethyl 2-(5-chloro-6-(2,2,2-trifluoroethoxy)-4′-(trifluoromethyl)biphenyl-3-yl)-3-cyclobutylpropanoate (0.25 g, 0.49 mmol) and lithium hydroxide monohydrate (0.206 g, 4.9 mmol) in a MeOH/THF/Water solvent mixture (10 ml/10 ml/10 ml) was stirred for 3 h at room temperature. After completion of reaction volatiles were removed under reduced pressure. Residue was diluted with water, acidified with 5% HCl solution and extracted with ethyl acetate (3×50 mL). The combined organic layers were washed with water, dried over Na2SO4, filtered and evaporated under reduced pressure. The residue was purified by Flash Column Chromatography to give 2-(5-chloro-6-(2,2,2-trifluoroethoxy)-4′-(trifluoromethyl)biphenyl-3-yl)-3-cyclobutylpropanoic acid (0.106 g) as a white solid. 1H-NMR (CDCl3, 400 MHz): 7.72 (d, 2H); 7.65 (d, 2H), 7.41 (s, 1H); 7.18 (s, 1H); 3.98 (q, 2H); 3.51 (t, 1H); 2.15-2.28 (m, 2H); 1.55-2.15 (m, 7H).

後処理

  1. customAfter completion of reaction volatiles
  2. customwere removed under reduced pressure
  3. additionResidue was diluted with water
  4. extractionextracted with ethyl acetate (3×50 mL)
  5. washThe combined organic layers were washed with water
  6. dry with materialdried over Na2SO4
  7. filtrationfiltered
  8. customevaporated under reduced pressure
  9. customThe residue was purified by Flash Column Chromatography

出典と根拠

ORDレコード
ord-b07bf4084dd446c283ec363291b5f8b6
出典データセット
uspto-grants-2012_07
特許番号
US08217064B2

反応ノート

読み込み中…