METHOD FOR PREPARING METAL HESPERIDIN AND HESPERITIN COMPLEXES, METAL COMPLEXES AND INSECTICIDE COMPOSITIONS FOR CONTROLLING INSECT PESTS IN CITIES, AGRICULTURE AND SILVICULTURE

摘要

A method is described for preparing metal hesperidin and hesperitin complexes, which comprises the steps of providing the [M_n(L'- L')_m] complexes, in which "n" and "m" are 1 or 2, M comprises a metal selected from Ru(ll), Mg(ll), Co(ll/lll), Cu(ll/lll), Mn(ll/lll), Fe(ll/lll), Zn(ll) and Ca(ll), and (L'-L') is a polypyridine binder, providing a flavanone (L) selected from deprotonated hesperidin and hesperitin; combining the [M_n(L'-L')_m] complex with the deprotonated flavanone in reaction conditions suitable for producing the [M_n(L)_k(L'-L')_m]²⁺ metal complexes, where "k" is 1 or 2, precipitating the addition complexes of compounds selected from NH₄PF₆, Na(CH₃COO) and NaCl, separating and washing, producing the [M_n(L)_k(L'-L')_m](PF₆)_x, [M_n(L)_k(L'-L')_m][AcO]- and [M_n(L)k(L'-L')_m] (Cl)_x metal complexes. Also described are the thus produced complexes and the insecticide compositions based on the metal complexes of the invention.