Dimethylformamide → HCID 22930703, compound

HRID 1295233Notes

Reaction equation

HRID 1295233 reaction equation
[OH:1][C:2]1[CH:6]=[C:5]([C:7]([O:9][CH3:10])=[O:8])[O:4][N:3]=1.Cl.Cl[CH2:13][C:14]1[CH:23]=[CH:22][C:21]2[C:16](=[CH:17][CH:18]=[CH:19][CH:20]=2)[N:15]=1.C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>O>[N:15]1[C:16]2[C:21](=[CH:20][CH:19]=[CH:18][CH:17]=2)[CH:22]=[CH:23][C:14]=1[CH2:13][O:1][C:2]1[CH:6]=[C:5]([C:7]([O:9][CH3:10])=[O:8])[O:4][N:3]=1

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 30838232-(Chloromethyl)quinoline hydrochlorideHCID 178498603HCID 178498603, compound

Product 1

HCID 22930703HCID 22930703, compoundYield 78.2%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
60 °C

Procedure

A mixture of methyl 3-hydroxyisoxazole-5-carboxylate (5.01 g), 2-chloromethylquinoline hydrochloride (8.99 g), potassium carbonate (14.50 g) and N,N-dimethylformamide (100 ml) was stirred at 60° C. for 2 hrs. The reaction mixture was poured into water and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried (MgSO4) and concentrated. The residue was subjected to silica gel column chromatography, and methyl 3-(2-quinolylmethoxy)-5-isoxazolecarboxylate (7.78 g, yield 78%) was obtained as colorless crystals from a fraction eluted with tetrahydrofuran. The crystals were recrystallized from tetrahydrofuran-hexane. melting point: 133–134° C.

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with saturated brine
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-162d52a0e2d94c908de05eb4c65516a8
Source dataset
uspto-grants-2007_07
Patent number
US07241785B2

Reaction notes

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