Triethylamine → ethyl (Z)-2-isopropoxy-3-[4-methoxy-3-({[4-(trifluoromethyl)benzyl]amino}carbonyl)phenyl]-2-propenoate

HRID 1816559Notes

Reaction equation

HRID 1816559 reaction equation
[CH2:1]([O:3][C:4](=[O:22])/[C:5](/[O:18][CH:19]([CH3:21])[CH3:20])=[CH:6]/[C:7]1[CH:8]=[CH:9][C:10]([O:16][CH3:17])=[C:11]([CH:15]=1)[C:12]([OH:14])=O)[CH3:2].[F:23][C:24]([F:34])([F:33])[C:25]1[CH:32]=[CH:31][C:28]([CH2:29][NH2:30])=[CH:27][CH:26]=1.C(P(=O)(OCC)OCC)#N.C(N(CC)CC)C>CN(C)C=O>[CH:19]([O:18]/[C:5](=[CH:6]\[C:7]1[CH:8]=[CH:9][C:10]([O:16][CH3:17])=[C:11]([C:12]([NH:30][CH2:29][C:28]2[CH:27]=[CH:26][C:25]([C:24]([F:23])([F:33])[F:34])=[CH:32][CH:31]=2)=[O:14])[CH:15]=1)/[C:4]([O:3][CH2:1][CH3:2])=[O:22])([CH3:21])[CH3:20]

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 76257Diethyl cyanophosphonateHCID 768044-(Trifluoromethyl)benzylamineHCID 599979455-[(Z)-3-ethoxy-2-isopropoxy-3-oxo-1-propenyl]-2-methoxybenzoic acid

Product 1

HCID 86759678ethyl (Z)-2-isopropoxy-3-[4-methoxy-3-({[4-(trifluoromethyl)benzyl]amino}carbonyl)phenyl]-2-propenoateYield 78.5%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

65 mg of 5-[(Z)-3-ethoxy-2-isopropoxy-3-oxo-1-propenyl]-2-methoxybenzoic acid and 37 mg of 4-(trifluoromethyl)benzylamine were dissolved in 1 ml N,N-dimethylformamide, and 33 μl diethyl cyanophosphonate and 30 μl triethylamine were added under ice-cooling. After stirring the reaction mixture at room temperature for 16 hours, it was poured into ice-water and extracted with ethyl acetate. The organic layer was successively washed with 1N hydrochloric acid and brine, dried over anhydrous magnesium sulfate and the solvent was evaporated. The residue was subjected to silica gel column chromatography, and from fractions eluted with hexane-ethyl acetate (5:1), 77 mg of ethyl (Z)-2-isopropoxy-3-[4-methoxy-3-({[4-(trifluoromethyl)benzyl]amino}carbonyl)phenyl]-2-propenoate was obtained.

Workup

  1. temperaturecooling
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was successively washed with 1N hydrochloric acid and brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customthe solvent was evaporated
  6. washfrom fractions eluted with hexane-ethyl acetate (5:1)

Sources & evidence

ORD record
ord-ecba6607c52d4d5c8dc47a9abb0535de
Source dataset
uspto-grants-2005_04
Patent number
US06884821B1

Reaction notes

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