1: 3-chloro-4-methyl-7-hydroxycoumarin With n-butyllithium in tetrahydrofuran; hexane 1 h; 2: O,O-diethyl chlorothiophosphate in tetrahydrofuran; hexane T=20°C; 12 h;

in N,N-dimethyl-formamide

sodium perchlorate; cycloplatinated aryl ketoxime in acetonitrile T=25°C; pH=8.5; Kinetics;