Water → 7-(4-Chloro-benzenesulfonyl)-7-(2,3,6-trifluoro-phenyl)-1-heptene

HRID 564311

Reaction equation

HRID 564311 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([CH2:11][C:12]2[C:17]([F:18])=[C:16]([F:19])[CH:15]=[CH:14][C:13]=2[F:20])(=[O:10])=[O:9])=[CH:4][CH:3]=1.Br[CH2:22][CH2:23][CH2:24][CH2:25][CH:26]=[CH2:27].CC(C)([O-])C.[K+].O>C1COCC1.C(OCC)(=O)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([S:8]([CH:11]([C:12]2[C:13]([F:20])=[CH:14][CH:15]=[C:16]([F:19])[C:17]=2[F:18])[CH2:27][CH2:26][CH2:25][CH2:24][CH:23]=[CH2:22])(=[O:10])=[O:9])=[CH:6][CH:7]=1

Participants

7

Reactant 4

HCID 962WaterHCID 759066-Bromo-1-hexeneHCID 23665647Potassium tert-butoxideHCID 589503342-(4-Chloro-benzenesulfonylmethyl)-1,3,4-trifluoro-benzene

Product 1

HCID 589500547-(4-Chloro-benzenesulfonyl)-7-(2,3,6-trifluoro-phenyl)-1-heptene

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

2-(4-Chloro-benzenesulfonylmethyl)-1,3,4-trifluoro-benzene (1.0 g, 3.1 mmol, from example 8, step 2) and 6-bromo-1-hexene (1.5 g, 6.3 mmole) were dissolved in 20 mL THF and potassium t-butoxide (1M in THF, 6.2 mL) was added. The reaction mixture was stirred at room temperature for three hours. 50 mL water and 50 mL EtOAc were added. The organic layer washed with brine (50 mL), dried over Na2SO4 and concentrated. The product was purified by column chromatography using EtOAc/Hexane as eluent (gradient from 0/100 to 25/75 in 40 minutes, 0.65 g, 52%). 1H NMR (CDCl3, 400 MHz) δ 7.63 (d, j=8.05 Hz, 2H), 7.45 (d, j=8.05 Hz, 2H), 7.14 (m, 1H), 6.83 (m, 0.5H), 6.74 (m, 0.5H), 5.70 (m, 1H), 4.93 (m, 2H), 4.58 (d, j=5.1 and 6.5 Hz, 1H), 2.43 (m, 1H), 2.31 (m, 1H), 1.99 (m, 2H), 1.39 (m, 2H), 1.25 (m, 2H).

Workup

  1. washThe organic layer washed with brine (50 mL)
  2. dry with materialdried over Na2SO4
  3. concentrationconcentrated
  4. customThe product was purified by column chromatography
  5. custom(gradient from 0/100 to 25/75 in 40 minutes, 0.65 g, 52%)

Sources & evidence

ORD record
ord-9f774f98be4b49f382f3174b0d099a64
Source dataset
uspto-grants-2011_11
Patent number
US08067621B2

Linked notes

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