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

HRID 1512447노트

반응식

HRID 1512447 반응식
[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]

참가 물질

4

반응물 2

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

생성물 1

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

시약·촉매·용매 1

HCID 21892291Methanol tetrahydrofuran water용매

실험 절차

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).

후처리

  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

출처 및 근거

ORD 기록
ord-b07bf4084dd446c283ec363291b5f8b6
출처 데이터셋
uspto-grants-2012_07
특허 번호
US08217064B2

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