Hantzsch ester → HCID 178517028, compound

HRID 928826Notes

Reaction equation

HRID 928826 reaction equation
[Br:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[NH:8][C:7](=[O:12])[CH:6]=[C:5]2[OH:13].BrC1C=C2C(=CC=1)N=C(Cl)C(CC1C=CC(C#N)=CC=1)=C2Cl.[F:36][C:37]([F:47])([F:46])[C:38]1[CH:45]=[CH:44][C:41]([CH:42]=O)=[CH:40][N:39]=1.CC1NC(C)=C(C(OCC)=O)CC=1C(OCC)=O>N1C=CC=CC=1.C(O)(C)C>[Br:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[N:8]=[C:7]([OH:12])[C:6]([CH2:42][C:41]1[CH:40]=[N:39][C:38]([C:37]([F:47])([F:36])[F:46])=[CH:45][CH:44]=1)=[C:5]2[OH:13]

Participants

7

Reactant 4

HCID 70849Hantzsch esterHCID 27777626-(Trifluoromethyl)pyridine-3-carboxaldehydeHCID 546894466-Bromo-4-hydroxyquinolin-2(1H)-oneHCID 867156224-((6-Bromo-2,4-dichloroquinolin-3-yl)methyl)benzonitrile

Product 1

HCID 178517028HCID 178517028, compound

Reagents, catalysts & solvents 2

HCID 1049PyridineSolventHCID 3776IsopropanolSolvent

Procedure

6-Bromo-4-hydroxyquinolin-2(1H)-one (3.2 g, 18.3 mmol, Intermediate 44: step a), 6-(trifluoromethyl)nicotinaldehyde (4.0 g, 16.7 mmol), and diethyl 2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate (4.2 g, 16.7 mmol), in pyridine (34 mL) were heated to 105° C. for 3 hours. The solution was allowed to cool to ambient temperature, resulting in the formation of solid. Minimal isopropanol was added to the mixture and the slurry was stirred for 1 hour, sonicated, and filtered. The filtered solids were rinsed with isopropanol and dried under continuous air flow to provide the title compound as an off-white solid. Additional product was recrystallized from the filtrate, filtered, and rinsed with isopropanol.

Workup

  1. customresulting in the formation of solid
  2. customsonicated
  3. filtrationfiltered
  4. washThe filtered solids were rinsed with isopropanol
  5. customdried under continuous air flow

Sources & evidence

ORD record
ord-11015ede2ee94c10a4909aeb12956f56
Source dataset
uspto-grants-2016_03
Patent number
US09290476B2

Reaction notes

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