Finally,a solution of substituted phenylthiourea and 3-bromo-2,4-pentanedione in acetone was refluxed and the titled compound thiazolone was ob.

Synthesis and Biological Activities of 2-(1-Aryl-3-methyl-5-chloro- 1H-pyrazol-4-yl)-3-(1-aroylamino)-4-thiazolidinones;

Five N tetrahydrobenzothiazolyl imines have been synthesized by the condensation of 4,5,6,7 tetrahydro 2 benzothiazolamine with aromatic aldehydes and the reactions of imines respectively, with thioglycollic acid obtained five thiazolidones.

According to the principle of superposition activity, in this article, we have synthesized a series of thiazolidone and acylthiourea derivatives which are not reported in the literature by introducting 1,2,3-triazole-based, 1,3,4–thiadiazole and dibenzo into acetyl-hydroxy acyl thiazolidoneand thiourea derivatives through the promotion of ultrasonic radiation.

Synthesis and Insecticidal Activities of N-Carbonylamido-2-(4-oxo- 4H-1-benzopyran-3-yl)-4-thiazolidinones Derivatives by Microwave-Assisted Parallel Syntheses;