Methanol → 2-(5-Chloro-6-(cyclopropylmethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)-4,4,4-trifluorobutanoic acid

HRID 385485Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 385485
[Cl:1][C:2]1[CH:3]=[C:4]([CH:23]([CH2:29][C:30]([F:33])([F:32])[F:31])[C:24]([O:26]CC)=[O:25])[CH:5]=[C:6]([C:13]2[CH:18]=[CH:17][C:16]([C:19]([F:22])([F:21])[F:20])=[CH:15][CH:14]=2)[C:7]=1[O:8][CH2:9][CH:10]1[CH2:12][CH2:11]1.CO.O.O[Li].O>C1COCC1>[Cl:1][C:2]1[CH:3]=[C:4]([CH:23]([CH2:29][C:30]([F:31])([F:32])[F:33])[C:24]([OH:26])=[O:25])[CH:5]=[C:6]([C:13]2[CH:14]=[CH:15][C:16]([C:19]([F:21])([F:22])[F:20])=[CH:17][CH:18]=2)[C:7]=1[O:8][CH2:9][CH:10]1[CH2:11][CH2:12]1

Komponenten

6

Edukt 4

HCID 887MethanolHCID 962WaterHCID 168937Lithium hydroxide, monohydrateHCID 57995541Ethyl 2-(5-chloro-6-(cyclopropylmethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)-4,4,4-trifluorobutanoate

Produkt 1

HCID 579954962-(5-Chloro-6-(cyclopropylmethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)-4,4,4-trifluorobutanoic acid

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To a stirred solution of ethyl 2-(5-chloro-6-(cyclopropylmethoxy)-4′-(trifluoromethyl) biphenyl-3-yl)-4,4,4-trifluorobutanoate (0.1 g, 0.404 mmol) in a mixture of THF (10 mL), methanol (10 mL) and water (5 mL) was added LiOH.H2O (85 mg, 2.024 mmol) at room temperature and the mixture was stirred at RT for 2 h. After complete consumption of the starting material as monitored by TLC, the reaction mixture was diluted with water (10 mL) and acidified using 1 N HCl at 0° C. The aqueous layer was extracted with EtOAc (2×20 mL) the combined organic extracts were washed with water (10 mL), brine (20 mL), dried over anhydrous Na2SO4 and evaporated under vacuum. The crude material was purified by column chromatography to 2-(5-chloro-6-(cyclopropylmethoxy)-4′-(trifluoromethyl)biphenyl-3-yl)-4,4,4-trifluorobutanoic acid (38 mg) as sticky syrup. 1HNMR (500 MHz) (CDCl3): δ (ppm) 7.71 (m, 4H), 7.39 (s, 1H), 7.19 (s, 1H), 3.92 (m, 1H), 3.41 (d, 2H), 3.08 (m, 1H), 2.54 (m, 1H), 0.96 (m, 1H), 0.40 (d, 2H), 0.00 (m, 2H).

Aufarbeitung

  1. customAfter complete consumption of the starting material
  2. additionthe reaction mixture was diluted with water (10 mL)
  3. customat 0° C
  4. extractionThe aqueous layer was extracted with EtOAc (2×20 mL) the combined organic extracts
  5. washwere washed with water (10 mL), brine (20 mL)
  6. dry with materialdried over anhydrous Na2SO4
  7. customevaporated under vacuum
  8. customThe crude material was purified by column chromatography to 2-(5-chloro-6-(cyclopropylmethoxy)-4′-(trifluoromethyl)biphenyl-3-yl)-4,4,4-trifluorobutanoic acid (38 mg) as sticky syrup

Quellen und Nachweise

ORD-Eintrag
ord-ee6079a740c84b569069c8f6f03b6d6c
Quelldatensatz
uspto-grants-2013_02
Patentnummer
US08367863B2

Notizen zur Reaktion

Wird geladen…