METHOD OF PRODUCING A CHELATING AGENT Russian patent published in 2021 - IPC A01N37/44 C07C227/14 C07C229/36 C07F15/02 

FIELD: biotechnology; agriculture.

SUBSTANCE: novel chelating agent of formula (I') is proposed: , where A is , corresponding iron chelate, agricultural compositions based thereon, method of producing chelating agents and corresponding metal chelates, as well as their use to eliminate iron deficiency in plants by providing accessibility of iron cation for plants.

EFFECT: disclosed chelate compounds have high resistance, can be used in a wide range of pH values, particularly in alkaline or neutral media, and are effective in providing accessibility of iron for plants.

9 cl, 1 tbl, 11 ex