Lithium hydroxide, monohydrate → 1-(5-Chloro-6-(2,2,2-trifluoroethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)-4,4-dimethylcyclohexanecarboxylic acid

HRID 1183653노트

반응식

HRID 1183653 반응식
[Cl:1][C:2]1[CH:3]=[C:4]([C:24]2([C:32]([O:34]CC)=[O:33])[CH2:29][CH2:28][C:27]([CH3:31])([CH3:30])[CH2:26][CH2:25]2)[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]([C:24]2([C:32]([OH:34])=[O:33])[CH2:29][CH2:28][C:27]([CH3:30])([CH3:31])[CH2:26][CH2:25]2)[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 57995618Ethyl 1-(5-chloro-6-(2,2,2-trifluoroethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)-4,4-dimethylcyclohexanecarboxylate

생성물 1

HCID 579956361-(5-Chloro-6-(2,2,2-trifluoroethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)-4,4-dimethylcyclohexanecarboxylic acid수율 67%

시약·촉매·용매 1

HCID 21892291Methanol tetrahydrofuran water용매

실험 절차

A mixture of compound ethyl 1-(5-chloro-6-(2,2,2-trifluoroethoxy)-4′-(trifluoromethyl)biphenyl-3-yl)-4,4-dimethylcyclohexanecarboxylate (200 mg, 0.37 mmol) and lithium hydroxide monohydrate (88 mg, 3.7 mmol) in a MeOH/THF/Water solvent mixture (5 ml/5 ml5/ml) was stirred for 3 h at room temperature. After completion of the reaction, the volatiles were removed under reduced pressure. The 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 1-(5-chloro-6-(2,2,2-trifluoroethoxy)-4′-(trifluoromethyl)biphenyl-3-yl)-4,4-dimethylcyclohexanecarboxylic acid in 67% yield (150 mg). 1H-NMR (CDCl3, 400 MHz): 7.72 (d, 2H); 7.65 (d, 2H), 7.56 (s, 1H); 7.34 (s, 1H); 3.98 (q, 2H); 2.48 (dd, 2H); 1.88 (m, 2H); 1.41 (m, 4H), 0.98 (s, 3H), 0.91 (s, 3H).

후처리

  1. customAfter completion of the reaction
  2. customthe volatiles were removed under reduced pressure
  3. additionThe residue 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-2a3383cf0c644e729420392064b72bb7
출처 데이터셋
uspto-grants-2014_03
특허 번호
US08664249B2

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