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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 409355Generated: October 28, 2026

Beta-Alanine → HCID 75038128, compound

https://huagongshe.com/reaction/409355

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBeta-AlanineHCID 239—
Reactant5-(4-Chlorophenyl)thiophene-2-carbaldehydeHCID 2763585—
ReactantDichloromethane methanolHCID 21226129—
ReactantHCID 57994057HCID 57994057—
SolventAcetic AcidHCID 176—
ProductHCID 75038128HCID 75038128—

Reaction Conditions

Temperature170 °C

Reaction Steps

To a mixture of 2-(5-oxo-2-thioxoimidazolidin-1-yl)-3-phenylpropanoic acid (0.080 g, 0.304 mmol) and 5-(4-chorophenyl)thiophene-2-carbaldehyde (0.063 g, 0.304 mmol) in acetic acid 5 mL is added β-alanine (2.7 mg, 0.030 mmol) and heat to 170° C. for 30 min under microwave irradiation. The resulting reaction mixture is cooled down and the solvent is removed. The pure product (0.038 g, 0.084 mmol, red solid) is obtained by column chromatography using MeOH/DCM, 2-7% ration solvent system. 1H-NMR (CD3OD/300 MHz): 7.81 (dm, J=9.0 Hz, 2H), 7.41 (dm, J=9.3 Hz, 2H), 7.14 (m, 5H), 6.98 (s, 2H), 6.42 (s, 1H), 5.51 (d, J=8.7 Hz, 1H), 3.75 (dd, J=11.7, 11.0 Hz, 1H), 3.55 (dd, J=15.3, 3.9 Hz, 1H). MS (ES−, m/z): 451.1 (M−−1, 100.0).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08759384B2
Source datasetuspto-grants-2014_06
ORD IDord-554f0dae2d6d474b80679702c8d81482
Source noteuspto-grants-2014_06