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Beta-Alanine → (E)-2-(4-((5-(3,4-dichlorophenyl)furan-2-yl)methylene)-5-oxo-2-thioxoimidazolidin-1-yl)-3-phenylpropanoic acid

HRID 409357
Notes
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Reaction equation

HRID 409357 reaction equation
[O:1]=[C:2]1[N:6]([CH:7]([CH2:11][C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[C:8]([OH:10])=[O:9])[C:5](=[S:18])[NH:4][CH2:3]1.[Cl:19][C:20]1[CH:21]=[C:22]([C:27]2S[C:30]([CH:32]=O)=[CH:29][CH:28]=2)[CH:23]=[CH:24][C:25]=1[Cl:26].NCCC(O)=[O:38].CO.C(Cl)Cl>C(O)(=O)C>[Cl:19][C:20]1[CH:21]=[C:22]([C:27]2[O:38][C:30](/[CH:32]=[C:3]3/[NH:4][C:5](=[S:18])[N:6]([CH:7]([CH2:11][C:12]4[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=4)[C:8]([OH:10])=[O:9])[C:2]/3=[O:1])=[CH:29][CH:28]=2)[CH:23]=[CH:24][C:25]=1[Cl:26]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 239Beta-AlanineHCID 167688395-(3,4-Dichlorophenyl)thiophene-2-carbaldehydeHCID 21226129Dichloromethane methanolHCID 57994057HCID 57994057, compound

Product 1

HCID 57994048(E)-2-(4-((5-(3,4-dichlorophenyl)furan-2-yl)methylene)-5-oxo-2-thioxoimidazolidin-1-yl)-3-phenylpropanoic acid

Reagents, catalysts & solvents 1

HCID 176Acetic AcidSolvent

Conditions

Temperature
80 °C

Procedure

To a mixture of 2-(5-oxo-2-thioxoimidazolidin-1-yl)-3-phenylpropanoic acid (0.110g, 0.416 mmol) and 5-(3,4-dichloro-phenyl)thiophene-2-carbaldehyde (0.100 g, 0.416 mmol) in acetic acid 10 mL is added β-alanine (1.8 mg, 0.021 mmol) and heat to 80° C. for 16 h. The resulting reaction mixture is cooled down and the solvent is removed. The pure product (0.070 g, 0.144 mmol, red solid) is obtained by column chromatography using MeOH/DCM, 2-7% ration solvent system. The product is further purified by recryatallization in hexane and DCM mixture and got pure E-isomer. 1H-NMR (CDCl3/CD3OD/300 MHz): 7.84 (d, J=2.1 Hz, 1H), 7.60 (dd, J=8.7, 2.4 Hz, 1H), 7.44 (d, J=2.7 Hz, 1H), 7.17 (m, 6H), 6.85 (m, 1H), 6.42 (s, 1H), 5.61 (dd, J=11.1, 5.4 Hz, 1H), 3.66 (dd, J=14.1, 12.6 Hz, 1H), 3.53 (dd, J=14.1, 5.1 Hz, 1H). MS (ES−, m/z): 585.3 (M−, 100.0).

Workup

  1. customThe resulting reaction mixture
  2. temperatureis cooled down
  3. customthe solvent is removed
  4. customThe pure product (0.070 g, 0.144 mmol, red solid) is obtained by column chromatography
  5. customThe product is further purified by recryatallization in hexane

Sources & evidence

ORD record
ord-6aa79c135c52472b85f5ea4333c37c3d
Source dataset
uspto-grants-2014_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08759384B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes