Cesium carbonate → HCID 178516445, compound

HRID 1778224Notes

Reaction equation

HRID 1778224 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([C:21]2[CH:26]=[CH:25][C:24]([Cl:27])=[CH:23][CH:22]=2)[C:9]2[CH:10]=[C:11]3[C:16](=[CH:17][CH:18]=2)[N:15]=[C:14]([OH:19])[CH:13]=[C:12]3Br)=[CH:4][CH:3]=1.Cl.Cl.[N:30]1[CH:35]=[CH:34][CH:33]=[N:32][C:31]=1[N:36]1[CH2:41][CH2:40][CH:39]([NH2:42])[CH2:38][CH2:37]1.C([O-])([O-])=O.[Cs+].[Cs+].CC([O-])(C)C.[K+]>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].C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.[Fe+2].O1CCOCC1>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([C:21]2[CH:26]=[CH:25][C:24]([Cl:27])=[CH:23][CH:22]=2)[C:9]2[CH:10]=[C:11]3[C:16](=[CH:17][CH:18]=2)[N:15]=[C:14]([OH:19])[CH:13]=[C:12]3[NH:42][CH:39]2[CH2:40][CH2:41][N:36]([C:31]3[N:30]=[CH:35][CH:34]=[CH:33][N:32]=3)[CH2:37][CH2:38]2)=[CH:4][CH:3]=1

Participants

8

Reactant 4

HCID 10796Cesium carbonateHCID 23665647Potassium tert-butoxideHCID 451562991-(Pyrimidin-2-yl)piperidin-4-amine dihydrochlorideHCID 178515443HCID 178515443, compound

Product 1

HCID 178516445HCID 178516445, compound

Reagents, catalysts & solvents 3

HCID 635956Ferrocene-1,1'-bis-(diphenylphosphine)CatalystHCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
100 °C

Procedure

Into a 8-mL round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed 6-[bis(4-chlorophenyl)methyl]-4-bromoquinolin-2-ol (150 mg, 0.33 mmol, 1.00 equip), 1-(pyrimidin-2-yl)piperidin-4-amine dihydrochloride (122.5 mg, 0.49 mmol, 1.49 equip), Pd2(dba)3 (30 mg, 0.03 mmol, 0.10 equip), dppf (63.4 mg, 0.11 mmol, 0.35 equip), Cs2CO3 (266 mg, 0.82 mmol, 2.50 equip), KOt-Bu (73 mg, 0.65 mmol, 2.00 equip), and 1,4-dioxane (3 mL). The resulting solution was stirred overnight at 100° C. The reaction was then quenched by the addition of water (100 mL). The resulting solution was extracted with ethyl acetate (3×50 mL) and the organic layers combined and dried over anhydrous sodium sulfate. The solids were filtered out. The filtrate was concentrated under vacuum. The residue was applied onto a silica gel column with dichloromethane/methanol (20:1). The resulting residue was recrystallized from ethyl acetate:petroleum ether in the ratio of 1:10 to yield 6-[bis(4-chlorophenyl)methyl]-4-[[1-(pyrimidin-2-yl)piperidin-4-yl]amino]quinolin-2-ol as a white solid.

Workup

  1. customInto a 8-mL round-bottom flask purged
  2. temperaturemaintained with an inert atmosphere of nitrogen
  3. customThe reaction was then quenched by the addition of water (100 mL)
  4. extractionThe resulting solution was extracted with ethyl acetate (3×50 mL)
  5. dry with materialdried over anhydrous sodium sulfate
  6. filtrationThe solids were filtered out
  7. concentrationThe filtrate was concentrated under vacuum
  8. customThe resulting residue was recrystallized from ethyl acetate

Sources & evidence

ORD record
ord-c3a919bc56634a96975f6333af2b9450
Source dataset
uspto-grants-2016_02
Patent number
US09266835B2

Reaction notes

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