Cesium carbonate → HCID 86684129, compound

HRID 1024030Notes

Reaction equation

HRID 1024030 reaction equation
Br[C:2]1[N:3]=[C:4]([NH:11][C:12]2[CH:17]=[CH:16][C:15]([N:18]3[CH2:23][CH2:22][N:21]([CH3:24])[CH2:20][CH2:19]3)=[CH:14][N:13]=2)[C:5]2[N:6]([CH:8]=[CH:9][N:10]=2)[CH:7]=1.[C:25]([O:28][CH2:29][C:30]1[C:35](B2OC(C)(C)C(C)(C)O2)=[CH:34][C:33]([F:45])=[CH:32][C:31]=1[N:46]1[CH2:58][CH2:57][N:49]2[C:50]3[CH2:51][CH2:52][CH2:53][CH2:54][C:55]=3[CH:56]=[C:48]2[C:47]1=[O:59])(=[O:27])[CH3:26].C(=O)([O-])[O-].[Cs+].[Cs+].CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].O1CCOCC1>[C:25]([O:28][CH2:29][C:30]1[C:31]([N:46]2[CH2:58][CH2:57][N:49]3[C:50]4[CH2:51][CH2:52][CH2:53][CH2:54][C:55]=4[CH:56]=[C:48]3[C:47]2=[O:59])=[CH:32][C:33]([F:45])=[CH:34][C:35]=1[C:2]1[N:3]=[C:4]([NH:11][C:12]2[CH:17]=[CH:16][C:15]([N:18]3[CH2:23][CH2:22][N:21]([CH3:24])[CH2:20][CH2:19]3)=[CH:14][N:13]=2)[C:5]2[N:6]([CH:8]=[CH:9][N:10]=2)[CH:7]=1)(=[O:27])[CH3:26]

Participants

7

Reactant 4

HCID 10796Cesium carbonateHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 580442052-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-4-fluoro-6-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)benzyl AcetateHCID 86684128HCID 86684128, compound

Product 1

HCID 86684129HCID 86684129, compoundYield 60.3%

Reagents, catalysts & solvents 2

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
90 °C

Procedure

A 250-mL single-neck round-bottomed flask equipped with a magnetic stirrer and reflux condenser was charged with 1,4-dioxane (60 mL), 106c (200 mg, 0.5 mmol), 4-fluoro-2-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl acetate 101l (385 mg, 0.8 mmol), and cesium carbonate (332 mg, 1 mmol). Xantphos (30 mg, 0.08 mmol) and Pd2(dba)3 (55 mg, 0.08 mmol) were added, and the reaction mixture was heated at 90° C. for 4 h. After this time the reaction was cooled to room temperature, it was filtered and the filtrate was concentrated under reduced pressure. The residue was purified on flash column eluting with CH2Cl2/MeOH (10:1) to afford 106d (200 mg, 60%). MS: [M+H]+ 664.

Workup

  1. customA 250-mL single-neck round-bottomed flask equipped with a magnetic stirrer
  2. temperaturereflux condenser
  3. temperatureAfter this time the reaction was cooled to room temperature
  4. filtrationit was filtered
  5. concentrationthe filtrate was concentrated under reduced pressure
  6. customThe residue was purified on flash column
  7. washeluting with CH2Cl2/MeOH (10:1)

Sources & evidence

ORD record
ord-c5da729f696a4b37b10ddac905b9d2ea
Source dataset
uspto-grants-2014_05
Patent number
US08722676B2

Reaction notes

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