Synthesis of 5-Arylisoxazole and 4,5-Dichloroisothiazole Amino-Substituted Derivatives and Their Biological Activity

Abstract: A series of amino derivatives of 5-arylisoxazoles and 4,5-dichloroisothiazole with primary and secondary amino groups was synthesized. 3-Aminomethyl-5-arylisoxazol-3-ylmethanamines were obtained on the basis of 5-aryl-3-(chloromethyl)isoxazoles using the Gabriel phthalimide method. 5-Arylisoxazol-3-yl- and 4,5-dichloroisothiazol-3-ylallylamines were synthesized in two ways: reduction of azomethines obtained by condensation of 5-arylisoxazolyl- and 4,5-dichloroisothiazolyl-3-carbaldehydes with allylamine, and by nucleophilic substitution of the chlorine atom in 3-chloromethyl derivatives of the corresponding azoles by reaction with allylamine. Amides and sulfonamides of azolylallylamines were synthesized. Some of the compounds obtained showed antibacterial and fungicidal activity. © 2022, Pleiades Publishing, Ltd