Trifluoroacetic acid → HCID 67044183, compound

HRID 1944471Notes

Reaction equation

HRID 1944471 reaction equation
C([SiH](CC)CC)C.FC(F)(F)C(O)=O.[CH3:15][O:16][C:17](=[O:30])[CH2:18][N:19]1[C:27]2[C:22](=[CH:23][C:24]([F:28])=[CH:25][CH:26]=2)[CH:21]=[C:20]1[CH3:29].[C:31]1([S:37]([C:40]2[CH:47]=[CH:46][CH:45]=[CH:44][C:41]=2[CH:42]=O)(=[O:39])=[O:38])[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1>ClCCl.ClCCCl>[CH3:15][O:16][C:17](=[O:30])[CH2:18][N:19]1[C:27]2[C:22](=[CH:23][C:24]([F:28])=[CH:25][CH:26]=2)[C:21]([CH2:42][C:41]2[CH:44]=[CH:45][CH:46]=[CH:47][C:40]=2[S:37]([C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=2)(=[O:39])=[O:38])=[C:20]1[CH3:29]

Participants

7

Reactant 4

HCID 6422Trifluoroacetic acidHCID 12052TriethylsilaneHCID 6409162-(phenylsulfonyl)benzaldehydeHCID 58247161Methyl 2-(5-fluoro-2-methyl-1H-indol-1-yl)acetate

Product 1

HCID 67044183HCID 67044183, compoundYield 91.5%

Reagents, catalysts & solvents 2

HCID 111,2-DichloroethaneSolvent2×HCID 6344DichloromethaneSolvent

Conditions

Temperature
-10 °C

Procedure

A mixture of triethylsilane (0.71 g), trifluoroacetic acid (0.53 g) and 1,2-dichloroethane (2.0 mL) at −10° C. was treated dropwise with a mixture of (5-fluoro-2-methylindol-1-yl)acetic acid methyl ester (0.091 g), 2-benzenesulfonylbenzaldehyde (0.12 g) and 1,2-dichloroethane (3.0 mL), and the resulting mixture was stirred at −10° C. for 15 minutes and then at room temperature for 2 hours. The mixture was diluted with dichloromethane, washed with saturated aqueous sodium hydrogen carbonate solution and dried over magnesium sulfate. The solvent was removed under reduced pressure and the residue purified by column chromatography on silica gel, eluting with a mixture of cyclohexane and dichloromethane (1:1 to 0:1 by volume) to afford the title compound as a colourless gum (0.17 g).

Workup

  1. waitat room temperature for 2 hours
  2. washwashed with saturated aqueous sodium hydrogen carbonate solution
  3. dry with materialdried over magnesium sulfate
  4. customThe solvent was removed under reduced pressure
  5. customthe residue purified by column chromatography on silica gel
  6. washeluting with a mixture of cyclohexane and dichloromethane (1:1 to 0:1 by volume)

Sources & evidence

ORD record
ord-d454007496be4c219e01a1c84b3c8f19
Source dataset
uspto-grants-2013_03
Patent number
US08394836B2

Reaction notes

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