Ethyl 2-(diphenylmethyleneamino)acetate → HCID 58222080, compound

HRID 1192364Notes

Reaction equation

HRID 1192364 reaction equation
[CH2:1]([O:3][C:4](=[O:20])[CH2:5][N:6]=[C:7]([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[CH3:2].CC(C)([O-])C.[K+].Br[CH2:28][C:29]1[CH:34]=[CH:33][C:32]([Cl:35])=[CH:31][C:30]=1[CH3:36]>CS(C)=O.C(OCC)(=O)C>[CH2:1]([O:3][C:4](=[O:20])[CH:5]([N:6]=[C:7]([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)[C:8]1[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=1)[CH2:28][C:29]1[CH:34]=[CH:33][C:32]([Cl:35])=[CH:31][C:30]=1[CH3:36])[CH3:2]

Participants

6

Reactant 3

HCID 319508Ethyl 2-(diphenylmethyleneamino)acetateHCID 23665647Potassium tert-butoxideHCID 53403081Benzene, 1-(bromomethyl)-4-chloro-2-methyl-

Product 1

HCID 58222080HCID 58222080, compoundYield 50.1%

Reagents, catalysts & solvents 2

HCID 679Dimethyl SulfoxideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution containing (Benzhydrylidene-amino)-acetic acid ethyl ester (2.3 g, 8.6 mmol) in 50 mL of DMSO under a nitrogen atmosphere was added potassium t-butoxide (1.2 g, 11 mmol) After stirring for 20 minutes, 1-Bromomethyl-4-chloro-2-methyl-benzene (1.89 g, 8.6 mmol) was added and the reaction allowed to stir at room temperature overnight. The reaction was diluted with ethyl acetate and washed with brine. The organic phase was dried over magnesium sulfate. Filtration, removal of solvent and purification of the residue via biotage eluting with 20% ethyl acetate/hexanes gave 2-(Benzhydrylidene-amino)-3-(4-chloro-2-methyl-phenyl)-propionic acid ethyl ester (1.75 g, 50%) as a yellow oil. LCMS (APCI+) m/z 406 [M+H]+; Rt: 4.16 min.

Workup

  1. stirringto stir at room temperature overnight
  2. washwashed with brine
  3. dry with materialThe organic phase was dried over magnesium sulfate
  4. filtrationFiltration, removal of solvent and purification of the residue via biotage
  5. washeluting with 20% ethyl acetate/hexanes

Sources & evidence

ORD record
ord-10027a9d26604e77b24978e6302068ff
Source dataset
uspto-grants-2014_03
Patent number
US08680114B2

Reaction notes

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