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

HRID 1929254
ノート
印刷プレビュー

反応式

HRID 1929254 の反応式
[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]
参加物実験手順後処理出典と根拠反応ノート

参加物

8

反応物 5

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

生成物 1

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

試薬・触媒・溶媒 2

HCID 8028
Tetrahydrofuran
溶媒
2 回
HCID 8058Hexane溶媒

実験手順

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.

後処理

  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

出典と根拠

ORDレコード
ord-ee04894301144576be7d39f7e348ee9f
出典データセット
uspto-grants-2012_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08187494B2

反応ノート

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