Cesium carbonate → Methyl 1-[5-(morpholin-4-ylcarbonyl)-4-(trifluoromethyl)pyrimidin-2-yl]-1,2,3,4-tetrahydroquinoline-6-carboxylate

HRID 38783Notes

Reaction equation

HRID 38783 reaction equation
Cl[C:2]1[N:7]=[C:6]([C:8]([F:11])([F:10])[F:9])[C:5]([C:12]([N:14]2[CH2:19][CH2:18][O:17][CH2:16][CH2:15]2)=[O:13])=[CH:4][N:3]=1.[NH:20]1[C:29]2[C:24](=[CH:25][C:26]([C:30]([O:32][CH3:33])=[O:31])=[CH:27][CH:28]=2)[CH2:23][CH2:22][CH2:21]1.C1C=CC(P(C2C=CC3C(=CC=CC=3)C=2C2C3C(=CC=CC=3)C=CC=2P(C2C=CC=CC=2)C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C(=O)([O-])[O-].[Cs+].[Cs+]>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].O.C1(C)C=CC=CC=1>[N:14]1([C:12]([C:5]2[C:6]([C:8]([F:11])([F:10])[F:9])=[N:7][C:2]([N:20]3[C:29]4[C:24](=[CH:25][C:26]([C:30]([O:32][CH3:33])=[O:31])=[CH:27][CH:28]=4)[CH2:23][CH2:22][CH2:21]3)=[N:3][CH:4]=2)=[O:13])[CH2:19][CH2:18][O:17][CH2:16][CH2:15]1

Participants

8

Reactant 4

HCID 10796Cesium carbonateHCID 634876Binap, (A+-)-HCID 16740570Methyl 1,2,3,4-tetrahydroquinoline-6-carboxylateHCID 581687074-{[2-Chloro-4-(trifluoromethyl)pyrimidin-5-yl]carbonyl}morpholine

Product 1

HCID 58168942Methyl 1-[5-(morpholin-4-ylcarbonyl)-4-(trifluoromethyl)pyrimidin-2-yl]-1,2,3,4-tetrahydroquinoline-6-carboxylateYield 55.8%

Reagents, catalysts & solvents 3

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 962WaterSolventHCID 1140TolueneSolvent

Procedure

A mixture of 4-{[2-chloro-4-(trifluoromethyl)pyrimidin-5-yl]carbonyl}morpholine (200 mg), methyl 1,2,3,4-tetrahydroquinoline-6-carboxylate (323 mg), tris(dibenzylideneacetone)dipalladium(0) (19 mg), (R)-(+)-2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (25 mg), cesium carbonate (661 mg), and toluene (3 mL) was heated with reflux for 1 hour. To the reaction mixture was added water and the aqueous layer was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate, and then the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate) to obtain methyl 1-[5-(morpholin-4-ylcarbonyl)-4-(trifluoromethyl)pyrimidin-2-yl]-1,2,3,4-tetrahydroquinoline-6-carboxylate (170 mg) as a yellowish white solid.

Workup

  1. temperaturewas heated
  2. temperaturewith reflux for 1 hour
  3. extractionthe aqueous layer was extracted with ethyl acetate
  4. washThe organic layer was washed with saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customthe solvent was evaporated under reduced pressure
  7. customThe obtained residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate)

Sources & evidence

ORD record
ord-b4c43087335e407c9feb3e0f958d6fe6
Source dataset
uspto-grants-2013_09
Patent number
US08524727B2

Reaction notes

Loading…