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Hydrochloric Acid → 4-Propyl-1-(3-fluorophenyl)-cyclohexanol

HRID 1929254
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HRID 1929254 반응식
[F:1][C:2]1[CH:3]=[C:4](Br)[CH:5]=[CH:6][CH:7]=1.C([Li])CCC.[CH2:14]([CH:17]([CH2:22][CH3:23])[CH2:18][C:19](=O)[CH3:20])[CH2:15][CH3:16].Cl.C(OCC)(=[O:27])C>C1COCC1.CCCCCC>[CH2:14]([CH:17]1[CH2:22][CH2:23][C:20]([C:4]2[CH:5]=[CH:6][CH:7]=[C:2]([F:1])[CH:3]=2)([OH:27])[CH2:19][CH2:18]1)[CH2:15][CH3:16]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

8

반응물 5

HCID 313Hydrochloric AcidHCID 8857Ethyl AcetateHCID 140821-Bromo-3-fluorobenzeneHCID 154392444-Ethylheptan-2-oneHCID 178418339Butyllithium

생성물 1

HCID 549193644-Propyl-1-(3-fluorophenyl)-cyclohexanol

시약·촉매·용매 2

HCID 8028
Tetrahydrofuran
용매
2회
HCID 8058Hexane용매

실험 절차

3-Fluorobromobenzene (8) (10.0 g) and THF (100 ml) were put in a reaction vessel under a nitrogen atmosphere, and cooled to −74° C. n-Butyllithium (1.57 M, in a n-hexane solution; 40.0 ml) was added dropwise thereto in the temperature range of −74° C. to −70° C., and the mixture was stirred for another 2 hours. Subsequently, 4-propylhexanone (16) (12.0 g) in a THF (50 ml) solution was added dropwise thereto in the temperature range of −74° C. to −65° C., and the mixture was stirred for another 8 hours while allowing the temperature to come to 25° C. The reaction mixture obtained was poured into a vessel containing a 1N—HCl solution (500 ml) and ethyl acetate (300 ml), and mixed. The mixture was then allowed to stand until it had separated into organic and aqueous phases, and an extractive operation was carried out. The organic phase obtained was fractionated, washed with water, a saturated aqueous solution of sodium hydrogencarbonate and water, and then dried over anhydrous magnesium sulfate. Subsequently, the solvent was distilled off under reduced pressure, giving 13.5 g of 4-propyl-1-(3-fluorophenyl)-cyclohexanol (18). The compound (18) obtained was a yellow oil.

후처리

  1. addition40.0 ml) was added dropwise
  2. stirringin the temperature range of −74° C. to −65° C., and the mixture was stirred for another 8 hours
  3. customto come to 25° C
  4. customThe reaction mixture obtained
  5. additionwas poured into a vessel
  6. additionmixed
  7. customhad separated into organic and aqueous phases
  8. customThe organic phase obtained
  9. washwashed with water
  10. dry with materiala saturated aqueous solution of sodium hydrogencarbonate and water, and then dried over anhydrous magnesium sulfate
  11. distillationSubsequently, the solvent was distilled off under reduced pressure

출처 및 근거

ORD 기록
ord-ee04894301144576be7d39f7e348ee9f
출처 데이터셋
uspto-grants-2012_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08187494B2

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