Dimethylformamide dimethyl acetal → HCID 59436265, compound

HRID 1895097Notes

Reaction equation

HRID 1895097 reaction equation
[O:1]=[C:2]([CH2:20][CH3:21])[C:3](=[N:8][NH:9][C:10]1[CH:15]=[CH:14][CH:13]=[C:12]([C:16]([F:19])([F:18])[F:17])[CH:11]=1)[C:4]([O:6][CH3:7])=[O:5].[CH3:22]OC(OC)N(C)C>>[CH3:21][C:20]1[C:2](=[O:1])[C:3]([C:4]([O:6][CH3:7])=[O:5])=[N:8][N:9]([C:10]2[CH:15]=[CH:14][CH:13]=[C:12]([C:16]([F:17])([F:18])[F:19])[CH:11]=2)[CH:22]=1

Participants

3

Reactant 2

HCID 78373Dimethylformamide dimethyl acetalHCID 178459327HCID 178459327, compound

Product 1

HCID 59436265HCID 59436265, compoundYield 87%

Procedure

A solution of methyl 3-oxo-2-{[3-(trifluoromethyl)phenyl]hydrazono}pentanoate (4.00 g, 13.2 mmol) in N,N-dimethylformamide dimethylacetal (33 mL) was heated at reflux for 2.5 hours. After that time, the reaction was cooled to room temperature and the resulting solid was collected by filtration and washed with a small amount of hexanes to give methyl 5-methyl-4-oxo-1-[3-(trifluoromethyl)phenyl]-1,4-dihydropyridazine-3-carboxylate (3.55 g, 87%) as a pale yellow solid.

Workup

  1. temperatureat reflux for 2.5 hours
  2. filtrationthe resulting solid was collected by filtration
  3. washwashed with a small amount of hexanes

Sources & evidence

ORD record
ord-2bc44bb14c414b328286c02d05dff6fa
Source dataset
uspto-grants-2013_08
Patent number
US08513251B2

Reaction notes

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