Dimethyl Sulfoxide → HCID 54472091, compound

HRID 442920Notes

Reaction equation

HRID 442920 reaction equation
[CH3:1][C:2]1[CH:3]=[C:4]([O:13][S:14]([C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=2[O:23][C:24]([F:27])([F:26])[F:25])(=[O:16])=[O:15])[CH:5]=[C:6]([CH:12]=1)[O:7][CH2:8][CH2:9][CH2:10][OH:11].C(N(CC)C(C)C)(C)C.CS(C)=O>ClCCl>[CH3:1][C:2]1[CH:3]=[C:4]([O:13][S:14]([C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=2[O:23][C:24]([F:26])([F:27])[F:25])(=[O:15])=[O:16])[CH:5]=[C:6]([CH:12]=1)[O:7][CH2:8][CH2:9][CH:10]=[O:11]

Participants

5

Reactant 3

HCID 679Dimethyl SulfoxideHCID 81531DiisopropylethylamineHCID 53649569HCID 53649569, compound

Product 1

HCID 54472091HCID 54472091, compoundYield 79.1%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Sulfur trioxide pyridine complex (720 mg, 4.5 mmol) was added to a solution of 3-[5-methyl-3-(2-trifluoromethoxyphenylsulfonyloxy)phenoxy]propanol (610 mg, 1.5 mmol), as prepared in the preceding step, N,N-diisopropylethylamine (0.6 mL, 4.7 mmol) and anhydrous dimethyl sulfoxide (0.3 mL, 4.2 mmol) in anhydrous dichloromethane (15 mL). The reaction mixture was stirred at ambient temperature for 1 hour and then quenched with 10% aqueous citric acid (50 mL). The mixture was extracted into dichloromethane (3×50 mL), and the dichloromethane solution was washed with 10% aqueous citric acid (40 mL) and dried over Na2SO4. After removing the solvent in vacuo, the residue was purified by flash column chromatography (CH2Cl2) to give the title compound as a colorless oil (480 mg, 79%). 1H-NMR (300 MHz, CDCl3) δ 9.83 (s, 1H), 7.96 (d, J=7.9 Hz, 1H), 7.73 (t, J=8.2 Hz, 1H), 7.49 (d, J=8.3 Hz, 1H), 7.41 (t, J=8.2 Hz, 1H), 6.62 (s, 1H), 6.54 (s, 1H), 6.47 (s, 1H), 4.20 (t, J=6.1 Hz, 2H), 2.87 (t, J=6.1, 2H), 2.26 (s, 3H).

Workup

  1. customquenched with 10% aqueous citric acid (50 mL)
  2. extractionThe mixture was extracted into dichloromethane (3×50 mL)
  3. washthe dichloromethane solution was washed with 10% aqueous citric acid (40 mL)
  4. dry with materialdried over Na2SO4
  5. customAfter removing the solvent in vacuo
  6. customthe residue was purified by flash column chromatography (CH2Cl2)

Sources & evidence

ORD record
ord-6ce80ec20ec949f59c282fcf75fbf5ea
Source dataset
uspto-grants-1999_04
Patent number
US05891909

Reaction notes

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