Toluene → 2-(Trimethylsilyl)ethyl [4-[2-(tetrahydro-2H-pyran-4-yloxy)ethoxy]phenyl}isoquinoline-6-carboxylate

HRID 1959948Notes

Reaction equation

HRID 1959948 reaction equation
C1(C)C=CC=CC=1.FC(F)(F)S(O[C:14]1[C:23]2[C:18](=[CH:19][CH:20]=[C:21]([C:24]([O:26][CH2:27][CH2:28][Si:29]([CH3:32])([CH3:31])[CH3:30])=[O:25])[CH:22]=2)[CH:17]=[N:16][CH:15]=1)(=O)=O.CC1(C)C(C)(C)OB([C:43]2[CH:58]=[CH:57][C:46]([O:47][CH2:48][CH2:49][O:50][CH:51]3[CH2:56][CH2:55][O:54][CH2:53][CH2:52]3)=[CH:45][CH:44]=2)O1.C(=O)([O-])[O-].[K+].[K+]>C(OCC)(=O)C>[O:54]1[CH2:53][CH2:52][CH:51]([O:50][CH2:49][CH2:48][O:47][C:46]2[CH:57]=[CH:58][C:43]([C:17]3[C:18]4[C:23](=[CH:22][C:21]([C:24]([O:26][CH2:27][CH2:28][Si:29]([CH3:32])([CH3:31])[CH3:30])=[O:25])=[CH:20][CH:19]=4)[CH:14]=[CH:15][N:16]=3)=[CH:44][CH:45]=2)[CH2:56][CH2:55]1

Participants

6

Reactant 4

HCID 1140TolueneHCID 11430Potassium CarbonateHCID 584957602-(Trimethylsilyl)ethyl 4-{[(trifluoromethyl)sulfonyl]oxy}isoquinoline-6-carboxylateHCID 66730495HCID 66730495, compound

Product 1

HCID 866619652-(Trimethylsilyl)ethyl [4-[2-(tetrahydro-2H-pyran-4-yloxy)ethoxy]phenyl}isoquinoline-6-carboxylateYield 52%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

Into toluene (10 ml), 2-(trimethylsilyl)ethyl 4-{[(trifluoromethyl)sulfonyl]oxy}isoquinoline-6-carboxylate (500 mg, 1.2 mmol) was dissolved, to which 4-{2-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethoxy}tetrahydro-2H-pyran (630 mg, 1.8 mmol) synthesized in Reference Example 2, 4,5-bis(diphenylphosphino)-9-dimethylxanthene (210 mg, 0.36 mmol), tris(dibenzylideneacetone)palladium (160 mg, 0.17 mmol), and potassium carbonate (500 mg, 3.6 mmol) were added. The resulting mixture was stirred at 100° C. for four hours, to which ethyl acetate was added. The resulting mixture was sequentially washed with water and saturated brine, and then dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue thus obtained was purified by silica gel column chromatography (hexane:ethyl acetate, 100:0-50:50, V/V) to give the desired title compound (307 mg, yield 52%).

Workup

  1. additionwere added
  2. additionwas added
  3. washThe resulting mixture was sequentially washed with water and saturated brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe residue thus obtained
  7. customwas purified by silica gel column chromatography (hexane:ethyl acetate, 100:0-50:50, V/V)

Sources & evidence

ORD record
ord-39e40db86bff4dc19714de8e1c47b308
Source dataset
uspto-grants-2013_04
Patent number
US08410273B2

Reaction notes

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