Collect. Czech. Chem. Commun. 1994, 59, 2022-2028

Coupling Kinetics of 4-Sulfobenzenediazonium Ion with 2,4-Thiazolidinedione, Its 3-Methyl Derivative and 3-Methyl-5-isoxazolone

Jaromír Kaválek, Vladimír Macháček and Vojeslav Štěrba

Department of Organic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic


3- and 4-substituted 5-phenylazo derivatives of 2,4-thiazolidinedione were prepared as potential biologically active fungicides. The kinetics of coupling of 4-sulfobenzenediazonium salt with 2,4-thiazolidinedione and 3-methyl-2,4-thiazolidinedione have been studied and the results have been compared with kinetic data of coupling reaction of 3-methyl-5-isoxazolone.