Methylamine → HCID 8180193, compound

HRID 1782030

Reaction equation

HRID 1782030 reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[C:7]([O:9][CH3:10])[CH:6]=[CH:5][C:4]=1[CH2:11][C:12]([OH:14])=O.C1N=C[N:17](C(N2C=NC=C2)=O)[CH:16]=1.CN.C(OCC)(=O)C>CN(C=O)C.O>[CH3:1][O:2][C:3]1[CH:8]=[C:7]([O:9][CH3:10])[CH:6]=[CH:5][C:4]=1[CH2:11][C:12]([NH:17][CH3:16])=[O:14]

Participants

7

Reactant 4

HCID 6329MethylamineHCID 8857Ethyl AcetateHCID 682631,1'-CarbonyldiimidazoleHCID 3505552-(2,4-Dimethoxyphenyl)acetic acid

Product 1

HCID 8180193HCID 8180193, compoundYield 73.3%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

A mixture of (2,4-dimethoxyphenyl)acetic acid (577 mg, 3.0 mmol) and N,N-carbonyldiimidazole (608 mg, 3.75 mmol) in DMF (10 mL) was stirred at room temperature for 45 min, aqueous 40% methyl amine (4.5 mL) was added and the reaction mixture was stirred at room temperature over the week-end. The reaction mixture was is partitoned between ethyl acetate and H2O. The organic layer was dried over Na2SO4, filtered and concentrated. The residue was purified by silica gel flash chromatography (0-80% ethyl acetate in petroleum spirit) to give the subtitled compound (460 mg).

Workup

  1. stirringthe reaction mixture was stirred at room temperature over the week-end
  2. dry with materialThe organic layer was dried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe residue was purified by silica gel flash chromatography (0-80% ethyl acetate in petroleum spirit)

Sources & evidence

ORD record
ord-ef69b6f7495e473da852aa96bc95b40c
Source dataset
uspto-grants-2009_03
Patent number
US07498338B2

Linked notes

Loading…