A common heterocyclic compound, the thiazolidine compound, name is 3-(4-Oxo-2-thioxothiazolidin-3-yl)propanoic acid,cas is 7025-19-6, mainly used in chemical industry, its synthesis route is as follows.
7025-19-6, The Compound (H-1) (2.63 g), rhodanine-3-propionic acid (2.05 g) and ammonium acetate (0.52 g) were dissolved in 2.2 g of acetic acid, and the mixture was stirred under heat at 120C. After 15 minutes, when the heating was stopped, the reaction product immediately solidified. The reaction product was cooled to room temperature, and then, water (50 ml) was added. The mixture was stirred, and a crystal was recovered by filtration. The crystal was transferred into a beaker, and the crystal was washed with water (100 ml) twice and then washed with 2-propnanol (100 ml) to give Compound (B-28) shown as an example. 4.08 g. Yield 90.6 %. Melting point = 215.6 – 220.2C. Fig. 8 shows UV absorption spectrum of Compound (B-28) in ethanol. A maximum absorption wavelength (lambdamax) = 486.0 nm. A maximum molecular coefficient (epsilon max) = 43,700 l/mol¡¤cm.
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Reference£º
Patent; MITSUBISHI PAPER MILLS LIMITED; EP1526159; (2005); A1;,
Thiazolidine – Wikipedia
Thiazolidine – ScienceDirect.com